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55dc83ec884044ee93bd47fcd40b71c9db8df8e3e50c37ff6c99a3b606efe366 | 2026-01-07T00:00:00-05:00 | Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter | arXiv:2601.02458v1 Announce Type: new Abstract: We study a minimal type-I seesaw framework in which a first-order phase transition (FOPT), driven by a singlet scalar, produces right-handed neutrinos (RHNs) through bubble collisions, realizing a cosmic-scale collider that probes ultra-high energy scales. The resulting R... | https://arxiv.org/abs/2601.02458 | Academic Papers | svg |
f7fd81d596ff8cbb29afb3d33f945b7bdbf5cf26c6c52ea984db7505795d24a1 | 2026-01-07T00:00:00-05:00 | Neutrino flavor instabilities in neutron star mergers with moment transport: slow, fast, and collisional modes | arXiv:2601.02461v1 Announce Type: new Abstract: Determining where, when, and how neutrino flavor oscillations must be included in large-scale simulations of hot and dense astrophysical environments is an enduring challenge that must be tackled to obtain accurate predictions. Using an angular moment-based linear stabili... | https://arxiv.org/abs/2601.02461 | Academic Papers | svg |
204b70880a9f6d1fc66505737438456aa5a664246349f7b2dc08229e3e712ff0 | 2026-01-07T00:00:00-05:00 | Exposure-averaged Gaussian Processes for Combining Overlapping Datasets | arXiv:2601.02462v1 Announce Type: new Abstract: Physically motivated Gaussian process (GP) kernels for stellar variability, like the commonly used damped, driven simple harmonic oscillators that model stellar granulation and p-mode oscillations, quantify the instantaneous covariance between any two points. For kernels ... | https://arxiv.org/abs/2601.02462 | Academic Papers | svg |
cd4da59b5d0636c1c4faf7ea9d925ccc58e5b77f378b0ea2d477881b1202e0dc | 2026-01-07T00:00:00-05:00 | Electron temperature relations and the direct N, O, Ne, S and Ar abundances of 49959 star-forming galaxies in DESI Data Release 2 | arXiv:2601.02463v1 Announce Type: new Abstract: We present the largest direct-method abundance catalogue of galaxies to date, containing measurements of 49$\,$959 star-forming galaxies at $z 8.105\pm0.004$ dex. We show that the S/O and Ar/O abundance ratios are strongly correlated, consistent with the expected addition... | https://arxiv.org/abs/2601.02463 | Academic Papers | svg |
0e6fed6c3f4128cf295d0cc975f96dfedd3cedf83728d23c2fd885fbb5a1f98d | 2026-01-07T00:00:00-05:00 | A possible challenge for Cold and Warm Dark Matter | arXiv:2601.02466v1 Announce Type: new Abstract: Measuring the density profile and mass concentration of dark-matter haloes is a key test of the standard cold dark matter paradigm. Such objects are dark and thus challenging to characterise, but they can be studied via gravitational lensing. Recently, a million-solar-mas... | https://arxiv.org/abs/2601.02466 | Academic Papers | svg |
91bfe5e52eb4d98548d82338dcc250a70d0f35b3d4efd1f2d44cabb5d3d3fd9c | 2026-01-07T00:00:00-05:00 | On the exceptionality of exceptional gravitational-wave events | arXiv:2601.02467v1 Announce Type: new Abstract: In gravitational-wave astronomy, as in other scientific disciplines, ``exceptional'' sources attract considerable interest because they challenge our current understanding of the underlying (astro)physical processes. Crucially, ``exceptionality'' is defined only relative ... | https://arxiv.org/abs/2601.02467 | Academic Papers | svg |
90237fdbdd2c6afffb90dd68291abaa5ab1c10f6ff83e37312725723e5a285a2 | 2026-01-07T00:00:00-05:00 | Hunting for the First Explosions at the High-Redshift Frontier | arXiv:2601.02469v1 Announce Type: new Abstract: The James Webb Space Telescope (JWST) has spectroscopically confirmed galaxies up to $z\sim14$, 300 Myr after the Big Bang, and several candidates have been discovered at $z\sim15-25$, with one candidate as high as $z\sim30$, only 100 Myr after the Big Bang. Such objects ... | https://arxiv.org/abs/2601.02469 | Academic Papers | svg |
7a1d494e09f78f847f317236a54a26be4a0b8edf49aaf88afcaf402d683bb76d | 2026-01-07T00:00:00-05:00 | The Maximum Gravity Model for partial Tidal Disruption Events: Mass Loss, Peak Fallback Rate and Dependence on Stellar Properties | arXiv:2601.02476v1 Announce Type: new Abstract: A star entering the tidal sphere of a supermassive black hole (SMBH) can be partially stripped of mass, resulting in a partial tidal disruption event (TDE). Here we develop an analytical model for properties of these events, including the peak fallback rate, $\dot{M}_{\rm... | https://arxiv.org/abs/2601.02476 | Academic Papers | svg |
cb414de0aada576326ab4a9a2d4fea0e3babc282e7dc4e823f4196d85bd03b39 | 2026-01-07T00:00:00-05:00 | Towards a global model for planet formation in layered MHD wind-driven discs: A population synthesis approach to investigate the impact of low viscosity and accretion layer thickness | arXiv:2601.02479v1 Announce Type: new Abstract: Planet formation is inherently linked to protoplanetary disc evolution, which recent developments suggest is driven by magnetised winds rather than turbulent viscosity. We study planet formation in magnetohydrodynamic (MHD) wind-driven discs, assuming accretion occurs in ... | https://arxiv.org/abs/2601.02479 | Academic Papers | svg |
4abe5f60ac86aefbfcc91a2e02b7bc3bd7d60a6a3e4f8fdf3d1ba6dc7bb9a942 | 2026-01-07T00:00:00-05:00 | Cosmic Chance Superpositions: Largest Catalog of Quasar-Galaxy Pairs at a Projected Separation of $D \lesssim 20$ kpc | arXiv:2601.02480v1 Announce Type: new Abstract: We present the largest catalogue to date of Galaxies On Top Of Quasars (GOTOQs), systems where the sightline to a background quasar passes directly through or very close to a foreground galaxy. Using $\approx$1.1 million quasar spectra from SDSS DR16 and the DESI Early Da... | https://arxiv.org/abs/2601.02480 | Academic Papers | svg |
601a0ce5dd896b1c68d71f9e29ca5e8a1591fd41a865c4f8a97cf2a97a5a1d85 | 2026-01-07T00:00:00-05:00 | Resolving the Fe K$\alpha$ Doublet of the Galactic Center Molecular Cloud G0.11-0.11 with XRISM | arXiv:2601.02482v1 Announce Type: new Abstract: Fe K$\alpha$ line emission from Galactic center molecular clouds can be produced either via fluorescence after illumination by an X-ray source or by cosmic ray ionization. Unparalleled high-resolution X-ray spectroscopy obtained by XRISM-Resolve for the galactic center mo... | https://arxiv.org/abs/2601.02482 | Academic Papers | svg |
1dbf23fd7b8a72a8dbf8a5f04f65244b8df0724c503073afc3874d9c68b5219d | 2026-01-07T00:00:00-05:00 | CHANG-ES XXXVI. Effects of spectral aging on radio scale heights | arXiv:2601.02483v1 Announce Type: new Abstract: Context. Cosmic rays and magnetic fields play an important role for the formation and evolution of galaxies. Radio continuum observations allows us to study them in the haloes of edge-on galaxies. Aims. We explore the frequency dependence of the radio scale height which d... | https://arxiv.org/abs/2601.02483 | Academic Papers | svg |
aa13685f473acad7f9a1eae8a3c4f62f0a55f0b94d0f8e7ec35f11fc55f2fd63 | 2026-01-07T00:00:00-05:00 | Models and Observational Predictions of Dust Traps in Protoplanetary Discs | arXiv:2601.02486v1 Announce Type: new Abstract: This manuscript investigates the impact of key dust evolution parameters on dust retention and trapping in protoplanetary discs. Using models with and without pressure bumps, combined with radiative transfer simulations, images of the dust continuum emission at (sub-)mill... | https://arxiv.org/abs/2601.02486 | Academic Papers | svg |
a4f4d5ff7afe6fcd69e1e051c9b3b0c50098a7da5a19c34c8859a97e85df0ffd | 2026-01-07T00:00:00-05:00 | Thick Disks, Thin Hopes: Suppressed Capture and Merger Rates in AGN | arXiv:2601.02487v1 Announce Type: new Abstract: Multiple models have been suggested over the years to explain the structure and support of accretion disks around supermassive black holes, from the standard thin thermal-pressure-dominated $\alpha$-disk model to more recent models that describe geometrically thicker radi... | https://arxiv.org/abs/2601.02487 | Academic Papers | svg |
80f297e909c8b5e8b55875353c27e86aa07ce878829a0205357df1cb610e742c | 2026-01-07T00:00:00-05:00 | The intermediate neutron capture process. VI. Proton ingestion and i-process in rotating magnetic asymptotic giant branch stars | arXiv:2601.02488v1 Announce Type: new Abstract: The intermediate neutron-capture process (i-process) can occur during proton ingestion events (PIEs), which may take place in the early evolutionary phases of asymptotic giant branch (AGB) stars. We investigate the impact of rotational and magnetic mixing on i-process nuc... | https://arxiv.org/abs/2601.02488 | Academic Papers | svg |
171141e4ecf1be59a1e30c26d819d7db348cc7dea5f9be837f2f171957a67861 | 2026-01-07T00:00:00-05:00 | Dynamical Origins of Azimuthal Metallicity Variations in the Galactic Disk: Insights from Kinematic Ridges with Gaia | arXiv:2601.02494v1 Announce Type: new Abstract: Kinematic and spectroscopic studies in the past few years have revealed coherent azimuthal metallicity variations across the Milky Way's disk that may be the result of dynamical processes associated with non-axisymmetric features of the Galaxy. At the same time, stellar k... | https://arxiv.org/abs/2601.02494 | Academic Papers | svg |
8df024b7a863ccce8b0946f4464224ba5773ecf23b01bd964f3812e0796d9a52 | 2026-01-07T00:00:00-05:00 | Gas rotation and turbulence in the galaxy cluster Abell 2029 | arXiv:2601.02495v1 Announce Type: new Abstract: We constrain the rotation and turbulent support of the intracluster medium (ICM) in Abell 2029 (A2029), using dynamical equilibrium models and a combination of state-of-the-art X-ray datasets. We reduce and conduct the spectral analysis of the XRISM/Resolve data. The rota... | https://arxiv.org/abs/2601.02495 | Academic Papers | svg |
0a4b186f9817d6e1ebc8e805aec47a3ffbfe0d9c5f9afbe0d6e52ce22b5d778c | 2026-01-07T00:00:00-05:00 | Dynamically consistent analysis of Galactic WN4b stars | arXiv:2601.02498v1 Announce Type: new Abstract: Many Wolf-Rayet (WR) stars have optically thick winds that cloak the hydrostatic layers of the underlying star. In these cases, traditional spectral analysis methods are plagued by degeneracies that make it difficult to constrain parameters such as the stellar radius and ... | https://arxiv.org/abs/2601.02498 | Academic Papers | svg |
80a64b1b7139d94a523ba47ab6236eaccf5084f5d3160bb7170804170f283d74 | 2026-01-07T00:00:00-05:00 | The origin of strong $\alpha$-element bimodalities in FIRE simulations of Milky Way-mass galaxies | arXiv:2601.02520v1 Announce Type: new Abstract: One of the Milky Way's characteristic features is a strongly bimodal distribution of $\alpha$-process elements, such as Mg, at fixed [Fe/H] in stellar abundances. We examine patterns in [Mg/Fe] versus [Fe/H] in FIRE-2 simulations of Milky Way-mass galaxies. Out of 16 gala... | https://arxiv.org/abs/2601.02520 | Academic Papers | svg |
52dc77e32f5ab7b15a8975c569f72ce3bbde7389e3ea19e27fed7216d953f481 | 2026-01-07T00:00:00-05:00 | Scalable Gaussian Processes for Integrated and Overlapping Measurements Via Augmented State Space Models | arXiv:2601.02527v1 Announce Type: new Abstract: Astronomical measurements are often integrated over finite exposures, which can obscure latent variability on comparable timescales. Correctly accounting for exposure integration with Gaussian Processes (GPs) in such scenarios is essential but computationally challenging:... | https://arxiv.org/abs/2601.02527 | Academic Papers | svg |
b5879abb166dad6b9497936a9b89fa6958c7717fc86fa70891b90f317b6b38a0 | 2026-01-07T00:00:00-05:00 | Catching 3I/ATLAS Using a Solar Oberth | arXiv:2601.02533v1 Announce Type: new Abstract: The third interstellar object to be discovered, 3I/ATLAS, has a unique and continually unfolding story to tell about its nature and origin as it is monitored by telescopes on Earth, orbiting Earth and around the Solar System. Previous research into missions using chemical... | https://arxiv.org/abs/2601.02533 | Academic Papers | svg |
23590e260bf95f3a5bbf57d7b9ce167595ba7d1e45034ca94bd1afff5607a2ed | 2026-01-07T00:00:00-05:00 | Composite Bulges - V. Detecting signatures of gas inflows in IFU data: The MUSE view of ionised gas kinematics in nearby galaxies | arXiv:2601.02534v1 Announce Type: new Abstract: Using VLT/MUSE data, we study the ionised-gas kinematics in a mass- and volume-limited ($M_* \geq 10^{10} M_\odot$, $D \leq 20$\,Mpc) sample of 21 nearby galaxies to identify signatures of extended shocks within their inner kiloparsec, which appear as coherent velocity ju... | https://arxiv.org/abs/2601.02534 | Academic Papers | svg |
23da7132dca0f39b886218e6ca7356d86fce15a29c99c2a17973b391a06842c3 | 2026-01-07T00:00:00-05:00 | Tracing Pebble Drift History in Two Protoplanetary Disks with CO Enhancement | arXiv:2601.02545v1 Announce Type: new Abstract: Pebble drift is an important mechanism for supplying the materials needed to build planets in the inner region of protoplanetary disks. Thus, constraining pebble drift's timescales and mass flux is essential to understanding planet formation history. Current pebble drift ... | https://arxiv.org/abs/2601.02545 | Academic Papers | svg |
caa1de19222fe77a7c99c2326eb05663524e046c5abe2a81217ee776ca5c7251 | 2026-01-07T00:00:00-05:00 | Dearth of Photosynthetically Active Radiation Suggests No Complex Life on Late M-Star Exoplanets | arXiv:2601.02548v1 Announce Type: new Abstract: The rise of oxygen in the Earth's atmosphere during the Great Oxidation Event (GOE) occurred about 2.3 billion years ago. There is considerably greater uncertainty for the origin of oxygenic photosynthesis, but it likely occurred significantly earlier, perhaps by 700 mill... | https://arxiv.org/abs/2601.02548 | Academic Papers | svg |
6cfca533255e0e6295b2aaf8962c85a894249cfc7b02a5253e7ae60c4dfba1d7 | 2026-01-07T00:00:00-05:00 | Using 23 Years of ACS/SBC Data to Understand Backgrounds: Significant Reductions in Expected Background Levels | arXiv:2601.02551v1 Announce Type: new Abstract: We have used 23 years of Hubble Space Telescope ACS/SBC data to study what background levels are encountered in practice and how much they vary. The backgrounds vary considerably, with F115LP, F122M, F125LP, PR110L, and PR130L all showing over an order of magnitude of var... | https://arxiv.org/abs/2601.02551 | Academic Papers | svg |
a160e711daa4556429a199538ea08d298bc69e9a8a85056a0883f07ef8fc2bd6 | 2026-01-07T00:00:00-05:00 | The Lazuli Space Observatory: Architecture & Capabilities | arXiv:2601.02556v1 Announce Type: new Abstract: The Lazuli Space Observatory is a 3-meter aperture astronomical facility designed for rapid-response observations and precision astrophysics across visible to near-infrared wavelengths (400-1700 nm bandpass). An off-axis, freeform telescope delivers diffraction-limited im... | https://arxiv.org/abs/2601.02556 | Academic Papers | svg |
cb4a601f6b20a6ed9a8f455eaad328b4aa908274de13fa4fc3f81fa1df99db76 | 2026-01-07T00:00:00-05:00 | COUGS-DESI: A Catalog of Unusual Galaxies with Polar Structures in the DESI Legacy Imaging Surveys | arXiv:2601.02579v1 Announce Type: new Abstract: Polar-structure galaxies (PSGs) host photometrically and kinematically decoupled components oriented at large angles to one another. These systems, which include polar rings, polar disks, polar halos, polar bulges, polar dust lanes, and polar tidal structures, provide val... | https://arxiv.org/abs/2601.02579 | Academic Papers | svg |
7af3902570b1061508892cc57b72497531efd88284d01db89d4cfe7c654e72db | 2026-01-07T00:00:00-05:00 | Isotopic Ratios in the Disk of HD 163296 | arXiv:2601.02593v1 Announce Type: new Abstract: Isotopic abundance ratios in protoplanetary disks are critical for understanding volatile inheritance and chemical evolution in planet-forming environments. We present Atacama Large Millimeter/submillimeter Array observations of the rare isotopologue 13C18O(2-1) at approx... | https://arxiv.org/abs/2601.02593 | Academic Papers | svg |
4310682fa07ac4ca379497f414315d4aca07f2bcfd8b5c5b47e4828b627e45b5 | 2026-01-07T00:00:00-05:00 | Meteor observations as a tool to constrain cosmogonic models of the Solar System | arXiv:2601.02599v1 Announce Type: new Abstract: Recent observations of small bodies of the Solar System showed evidence of the presence of refractory (asteroidal) material in the Oort cloud. Different models of the origin of the Solar System predict different numbers of rocky objects in the Oort cloud, meaning that mea... | https://arxiv.org/abs/2601.02599 | Academic Papers | svg |
e0a6952b508f221d1a05c8e33590fb88bea19576059368df0dd0d4848e29b092 | 2026-01-07T00:00:00-05:00 | Exploring Composition Mixing in Kilonova Ejecta with Ray-by-ray Simulations | arXiv:2601.02600v1 Announce Type: new Abstract: Binary neutron star merger (BNSM) ejecta are considered a primary repository of $r$-process nucleosynthesis and a source of the observed heavy-element abundances. We implement composition mixing into ray-by-ray radiation-hydrodynamic simulations of BNSM ejecta, coupled wi... | https://arxiv.org/abs/2601.02600 | Academic Papers | svg |
7b87798bc3852ccca5aff5b0c782cd01d609a4ea171103d58dbacbe7187074f0 | 2026-01-07T00:00:00-05:00 | Where does the simplified Stellar Contamination Model fail in Exoplanet Transmission Spectroscopy? | arXiv:2601.02621v1 Announce Type: new Abstract: Stellar photospheric heterogeneities (e.g., starspots, faculae) distort the stellar spectrum in transit and imprint wavelength-dependent biases on the planet-to-star radius ratio (Transit Light Source Effect, TLSE). The Rackham-TLSE (R-TLSE) prescription applies a disc-av... | https://arxiv.org/abs/2601.02621 | Academic Papers | svg |
8e198cc85b4bdcc1289117e779c10e50d030f7c1f20dc9f7a9fb4fd0ff094ec1 | 2026-01-07T00:00:00-05:00 | E-XQR-30: Evidence for an Increase in the Ionization State of Metal Absorbers from z~6 to z~2 | arXiv:2601.02634v1 Announce Type: new Abstract: We investigate the evolution of the ionization state of metal-enriched gas in and around galaxies near the epoch of reionization using a sample of 488 metal absorption systems at 4.3<6.3 from the E-XQR-30 survey. We classify the absorption systems based on whether they di... | https://arxiv.org/abs/2601.02634 | Academic Papers | svg |
77eb844ecd1b171af1722d4119f0e8f1d25307ef7158ae339748ea4c689cfd42 | 2026-01-07T00:00:00-05:00 | Quantifying the Contamination of TESS Ecliptic-Plane Light Curves by Minor Planets | arXiv:2601.02637v1 Announce Type: new Abstract: Though missions devoted to time series photometry focus primarily on targets far beyond the solar system, their observations can be contaminated by foreground minor planets, especially near the ecliptic plane where solar system objects are most prevalent. Crucially, depen... | https://arxiv.org/abs/2601.02637 | Academic Papers | svg |
beec937e0f21098ae92b35488c63fc002aacc02a7c160c6419d7689d0d7da4b5 | 2026-01-07T00:00:00-05:00 | SN 2024abfl: A Flat-Plateau, Low-Luminosity Type IIP Supernova with Early CSM Interaction | arXiv:2601.02638v1 Announce Type: new Abstract: We present photometric and spectroscopic observations of SN 2024abfl, a low-luminosity Type IIP supernova (LLSN) discovered shortly after explosion. The transient reached a peak absolute magnitude of $M_V = -14.9$ and exhibited an extended, flat plateau lasting $\sim$125 ... | https://arxiv.org/abs/2601.02638 | Academic Papers | svg |
6b802db8fe327987c08fc68c3bdb40898696c08e78c92ab6af3c326c19a78f93 | 2026-01-07T00:00:00-05:00 | TOI-4495: A Pair of Aligned, Near-Resonant Sub-Neptunes that Likely Experienced Overstable Migration | arXiv:2601.02665v1 Announce Type: new Abstract: We report the discovery of a sub-Neptune and a Neptune-like planet ($R_b = 2.48^{+0.14}_{-0.10}\,R_\oplus$, $R_c = 4.03^{+0.23}_{-0.15}\,R_\oplus$) orbiting the F-type star TOI-4495. The planets have orbital periods of 2.567 days and 5.185 days, lying close to a 2:1 mean-... | https://arxiv.org/abs/2601.02665 | Academic Papers | svg |
a413347612dde18ecd5ba9d969ebf8dc8a8e72c2c3f07847e7d9351c18b672b1 | 2026-01-07T00:00:00-05:00 | The Origin of Spin-Alignment of Dark Matter Subhalos | arXiv:2601.02678v1 Announce Type: new Abstract: Subhalo spin is essential for modeling galaxy formation and controlling systematic uncertainties in intrinsic alignment (IA) studies. However, the physical mechanisms governing subhalo spin acquisition within the tidal environments of host halos remain poorly understood. ... | https://arxiv.org/abs/2601.02678 | Academic Papers | svg |
e3d26d3da999409ed5fda4f9ca5f39218f851143a0abdc17dcecb32c0b7f8794 | 2026-01-07T00:00:00-05:00 | The Study of a Cosmic Ray Candidate Detected by the Askaryan Radio Array | arXiv:2601.02718v1 Announce Type: new Abstract: Experiments designed to detect ultra-high energy (UHE) neutrinos using radio techniques are also capable of detecting the radio signals from cosmic-ray (CR) induced air showers. These CR signals are important both as a background and as a tool for calibrating the detector... | https://arxiv.org/abs/2601.02718 | Academic Papers | svg |
0d1a23e770ed0f69fc41fc96dab1bb2c634ac5888a4213303bad5232138ef57e | 2026-01-07T00:00:00-05:00 | A Tale of Two Dust Disks in Our Milky | arXiv:2601.02724v1 Announce Type: new Abstract: Cosmic dust plays a vital role in stellar and galactic formation and evolution, but its three-dimensional structure in the Milky Way has remained unclear due to insufficient precise reddening and distance measurements. Although early studies typically adopted a single-dis... | https://arxiv.org/abs/2601.02724 | Academic Papers | svg |
b9d101a95fded8a63de29cd582244121f1d0e2ba661e5a808cf929378c3c805e | 2026-01-07T00:00:00-05:00 | Super-Orbital Variations in Magnetar Rotation Measure Arising from the Precession of Companion Star: Implications for FRB 20220529 | arXiv:2601.02734v1 Announce Type: new Abstract: Recent observations of FRB 20220529 reveal significant variation and a partial reversal in its rotation measure (RM), suggesting the presence of a dynamically evolving magnetized environment, which could be caused by the orbital motion of the magnetar within the binary sy... | https://arxiv.org/abs/2601.02734 | Academic Papers | svg |
406b6c1d5b15eb08e310ea064ce6e8d8aadfb9839dbc35aaaa276b461cd2093d | 2026-01-07T00:00:00-05:00 | A Galactic Supernova Remnant Candidate at l =25.8, b=+0.2 Revealed by Near-Infrared Imaging and Spectroscopy | arXiv:2601.02761v1 Announce Type: new Abstract: We present high-resolution near-infrared spectroscopic observations of the newly identified supernova remnant (SNR) candidate G25.8+0.2 obtained with the Immersion Grating Infrared Spectrograph (IGRINS) on the Harlan J. Smith Telescope. The source was originally discovere... | https://arxiv.org/abs/2601.02761 | Academic Papers | svg |
94cb13c35dd642507976b76bc8f81a98acb8fbe207b065ed7b0de90bbfaa4dbe | 2026-01-07T00:00:00-05:00 | Finite Plasma Beta Three-dimensional Magnetic Field Extrapolation Based on MHD Relaxation Method | arXiv:2601.02772v1 Announce Type: new Abstract: Three-dimensional (3D) magnetic field in the solar atmosphere provides crucial information to understand the explosive phenomenon such as solar flares and coronal mass ejections. Since it is still hard that we determine the 3D magnetic field from direct observation, a non... | https://arxiv.org/abs/2601.02772 | Academic Papers | svg |
77a310a832c2e29594951dfd29dc2c624161794bacf8fa9e93c19d79b6b88924 | 2026-01-07T00:00:00-05:00 | Indications of a Late-Time Transition to a Strongly Interacting Dark Sector | arXiv:2601.02789v1 Announce Type: new Abstract: We explore the transition from the $\Lambda$CDM to an interacting dark sector by introducing a model with a redshift threshold that controls the onset of the energy transfer between the dark energy and the dark matter. Below the transition redshift, the interaction betwee... | https://arxiv.org/abs/2601.02789 | Academic Papers | svg |
fc1a94b9e71baafb3de0af0298b0e735d7227b7eadcb87d8634e36f926b33ed1 | 2026-01-07T00:00:00-05:00 | A New Collision Avoidance Fiber Assignment Algorithm for Robotic Fiber Positioners in Multi-Object Spectroscopy | arXiv:2601.02795v1 Announce Type: new Abstract: We present a new fiber assignment algorithm for a robotic fiber positioner system in multi-object spectroscopy. Modern fiber positioner systems typically have overlapping patrol regions, resulting in the number of observable targets being highly dependent on the fiber ass... | https://arxiv.org/abs/2601.02795 | Academic Papers | svg |
512da468f3892d9b87f0e6f11e12fcbb93669c6ad3ef928aff128ff1c2c67658 | 2026-01-07T00:00:00-05:00 | Transient Large-Scale Anisotropy in TeV Cosmic Rays due to an Interplanetary Coronal Mass Ejection | arXiv:2601.02801v1 Announce Type: new Abstract: Large- or medium-scale cosmic ray anisotropy at TeV energies has not previously been confirmed to vary with time. Transient anisotropy changes have been observed below 150 GeV, especially near the passage of an interplanetary shock and coronal mass ejection containing a m... | https://arxiv.org/abs/2601.02801 | Academic Papers | svg |
1b27f7f408e658c2d77e0b6fe36005ff9bce2d6871997e3237a16cbbac4c261a | 2026-01-07T00:00:00-05:00 | Beyond Sgr A* and M87*: Sub-Microarcsecond Black Hole Shadow Detection via Lunar-based Extremely Long Baseline Interferometry | arXiv:2601.02812v1 Announce Type: new Abstract: The 1.3 mm ground-based very long baseline interferometry (VLBI) array, the Event Horizon Telescope (EHT), is limited by the Earth's diameter and can image the supermassive black hole (SMBH) shadows of only M87* and Sgr A*. Extending the array with an assumed lunar-based ... | https://arxiv.org/abs/2601.02812 | Academic Papers | svg |
8b59abdf9a73bf9a6aa1bf195bde513d2751bb5c1c802485a1c9afec18e79908 | 2026-01-07T00:00:00-05:00 | Nonlinear Weak Lensing reconstruction for Galaxy Clusters | arXiv:2601.02816v1 Announce Type: new Abstract: We present a numerical investigation of nonlinear cluster lens reconstruction using weak lensing mass mapping. Recent advances in imaging and shear estimation have pushed reliable reduced shear measurements closer to cluster cores, making mass reconstruction accessible in... | https://arxiv.org/abs/2601.02816 | Academic Papers | svg |
71a8952bd61e1f3f27485843b5365a21eb6fe400a00c458ee3d4055d5a93f22f | 2026-01-07T00:00:00-05:00 | Studying the surface effect in Procyon A as an F-type star | arXiv:2601.02840v1 Announce Type: new Abstract: Procyon A is an F-type main-sequence star in a binary system. It has been the subject of numerous ground-based and space-based observing campaigns, providing precise classical constraints, including a well-determined mass. It was also among the first stars in which indivi... | https://arxiv.org/abs/2601.02840 | Academic Papers | svg |
18b8ccb37e0be313bff10e00e722139afdad5a221ff1c13d01f17be396df2e60 | 2026-01-07T00:00:00-05:00 | Investigating the Anisotropy of Dispersion Measure Contribution from the Galactic Halo by Using Fast Radio Bursts | arXiv:2601.02849v1 Announce Type: new Abstract: We propose a data-driven approach to reconstruct the all-sky distribution of the dispersion measure contribution from the Galactic halo ($\mathrm{DM_{halo}}$) through a spherical harmonic expansion, enabling an investigation of its possible anisotropies. Based on the NE20... | https://arxiv.org/abs/2601.02849 | Academic Papers | svg |
68fe30b4e82e5f4c001316faf49a845a5b8cc4762361f2775a98ddaaee987021 | 2026-01-07T00:00:00-05:00 | BEACON: JWST NIRCam Pure-parallel Imaging Survey. II. Physical Properties of $z=7-14$ Galaxies | arXiv:2601.02861v1 Announce Type: new Abstract: We present photometric properties of 161 galaxy candidates at $z=7-14$ selected from the second data release (DR2) of BEACON, a JWST Cycle 2 pure-parallel NIRCam imaging program. Carefully selected from 36 independent pointings (corresponding to $\sim350$\,arcmin$^2$ sky ... | https://arxiv.org/abs/2601.02861 | Academic Papers | svg |
78f8c527bb8e2ee0e2215b7c66fa36dca56f5db81755608b2fe85ce2412f3ec7 | 2026-01-07T00:00:00-05:00 | GATOS XI : Excess dust heating in the Narrow Line Regions of nearby AGN revealed with JWST/MIRI | arXiv:2601.02865v1 Announce Type: new Abstract: We present JWST/MIRI imaging of eight nearby Active Galactic Nuclei (AGN) from the GATOS survey to investigate the physical conditions of extended dust in their narrow line regions (NLRs). In four galaxies (ESO 428-G14, NGC 4388, NGC 3081, and NGC 5728), we detect spatial... | https://arxiv.org/abs/2601.02865 | Academic Papers | svg |
422d346ab41c5a120c96ee0a46b8bd61eaa6c93dd9036370e5e4b8c2b38364fc | 2026-01-07T00:00:00-05:00 | Measuring the homogeneity scale using the peculiar velocity field | arXiv:2601.02886v1 Announce Type: new Abstract: We propose an innovative definition of the scale at which the Universe becomes homogeneous based on measurements of velocities rather than densities. When using the matter density field, one has to choose an arbitrary scale (e.g. within 1\% of the average density) to defi... | https://arxiv.org/abs/2601.02886 | Academic Papers | svg |
9439a528e110d5a953bfb1d9f807a7bb85c4ebd489f07afd5347f7359ace5fe2 | 2026-01-07T00:00:00-05:00 | Probing ionized bubbles around luminous sources during reionization with SKA 21-cm observations | arXiv:2601.02889v1 Announce Type: new Abstract: Detecting and characterizing individual ionized bubbles during the Epoch of Reionization (EoR) using the redshifted HI 21-cm signal provides a direct probe of the early ionizing sources and the intergalactic medium. We develop and validate a computationally efficient esti... | https://arxiv.org/abs/2601.02889 | Academic Papers | svg |
7320043edc0753aa0bcdd1bb30ce0bd3c820e4108e393289dfccd014fc80649b | 2026-01-07T00:00:00-05:00 | Asteroseismology of solar-like oscillators: emulating individual mode frequencies with a branching neural network | arXiv:2601.02926v1 Announce Type: new Abstract: Accurately measuring stellar ages and internal structures is challenging, but the inclusion of asteroseismic observables can substantially improve precision. However, the curse of dimensionality means this comes at a high computational cost when using standard interpolati... | https://arxiv.org/abs/2601.02926 | Academic Papers | svg |
b0f9b92ec4230e14152dc37965c4f12cd03b5f7448a296024e6d1a6a125076ed | 2026-01-07T00:00:00-05:00 | Discovery of an Extremely Luminous Type II Cepheid in the Andromeda Giant Stellar Stream: Evidence for a Hierarchical Triple with an Inner Binary Merger | arXiv:2601.02960v1 Announce Type: new Abstract: We report the discovery of LAMOST J0041+3948, the most luminous post-AGB Type II Cepheid (TIIC) known, located in the Andromeda Giant Stellar Stream. Its spectral energy distribution (SED) exhibits a strong near-infrared excess, indicating the presence of a circumbinary d... | https://arxiv.org/abs/2601.02960 | Academic Papers | svg |
c102aad63990633dcd22da9ba630b2d25136a77c699e892abd2c0d436353b342 | 2026-01-07T00:00:00-05:00 | Polarization of the CMB in the Standard Model Extension | arXiv:2601.02961v1 Announce Type: new Abstract: In standard cosmology, Cosmic Microwave Background photons near the last scattering surface exhibit only linear polarization due to Compton scattering, leading to the assumption that primordial circular polarization is negligible. However, the physics of Lorentz violation... | https://arxiv.org/abs/2601.02961 | Academic Papers | svg |
463391130804d9cf42fb6114f27209a7989e7d43649a87cf383905185ebbcd4b | 2026-01-07T00:00:00-05:00 | Mean opacity tables for probing the interior and atmosphere of giant planets | arXiv:2601.02995v1 Announce Type: new Abstract: We present new Rosseland and Planck mean opacity tables relevant to the shallow interiors and atmospheres of giant planets. The tables span metallicities from 0.31 to 50 times solar, temperatures from 100 - 6000 K, and pressures from 1e-6 - 1e5 bar, thereby covering a wid... | https://arxiv.org/abs/2601.02995 | Academic Papers | svg |
6274114b8ddb1b4a4291f18299690988a8e7e5281317f65726868515de6e77cf | 2026-01-07T00:00:00-05:00 | Bounce Inflation with Dynamical Dark Energy in Light of DESI DR2 | arXiv:2601.03028v1 Announce Type: new Abstract: Recently, the Dark Energy Spectroscopic Instrument Data Release 2 (DESI DR2) suggests that the dark energy in our universe might be evolving, favoring the Chevallier-Polarski-Linder (CPL) parameterization and a lower Hubble constant. In our previous work, it has been repo... | https://arxiv.org/abs/2601.03028 | Academic Papers | svg |
69442ce6dbe6e4fab9f8bd904fd721c593ff5098595f54f934a333a7d86adda8 | 2026-01-07T00:00:00-05:00 | The winds of OBA hypergiants and luminous blue variables: Dynamically-consistent atmosphere models reveal multiple wind regimes | arXiv:2601.03072v1 Announce Type: new Abstract: OBA hypergiants (OBAHGs) are evolved massive stars with notable wind features in their optical spectrum. Positioned at the cool edge of the line-driven wind regime, many are candidate luminous blue variables (LBVs) likely near the Eddington Limit. Although brief, this evo... | https://arxiv.org/abs/2601.03072 | Academic Papers | svg |
e29abeed73afbda17aeff3e80280586c72dd1900eb916e35259754b3b7d75e9d | 2026-01-07T00:00:00-05:00 | A Long Tidal Feature Extending from a Low-Redshift Galaxy Revealed in Rubin Data Preview 1 Imaging | arXiv:2601.03080v1 Announce Type: new Abstract: Using the Vera C. Rubin Observatory Data Preview 1 (DP1), we present the detection and photometric analysis of a stellar stream extending along the minor axis of a massive disk-galaxy, LEDA 751050, at a redshift of z = 0.1 in the Extended Chandra Deep Field-South (ECDFS).... | https://arxiv.org/abs/2601.03080 | Academic Papers | svg |
fa4f7b61c95a8d80b3c09632054684a7bf4c485fb4a6554cca5f523c9c8014d5 | 2026-01-07T00:00:00-05:00 | Late-time Background Constraints on Linear and Non-linear Interacting Dark Energy after DESI DR2 | arXiv:2601.03122v1 Announce Type: new Abstract: In this study, we present observational constraints on a class of phenomenological interacting dark energy (IDE) models that admit analytical solutions for the Hubble parameter $H(z)$. We consider a set of five linear and three non-linear IDE scenarios, encompassing both ... | https://arxiv.org/abs/2601.03122 | Academic Papers | svg |
be39b2f5032dfd475ef3dc7093fa363331eb474c855784e9be1db0208894d65a | 2026-01-07T00:00:00-05:00 | Large-scale radio bubbles around the black hole transient V4641 Sgr | arXiv:2601.03140v1 Announce Type: new Abstract: Black holes (BHs) in microquasars can launch powerful relativistic jets that have the capacity to travel up to several parsecs from the compact object and interact with the interstellar medium. Recently, the detection of large-scale very-high-energy (VHE) gamma-ray emissi... | https://arxiv.org/abs/2601.03140 | Academic Papers | svg |
21f28b2d5b808df5891e045a451cbea6fcc33677bb80143473b026c4ea548bfe | 2026-01-07T00:00:00-05:00 | Helioseismic Evidence That the Solar Dynamo Originates near the Tachocline | arXiv:2601.03238v1 Announce Type: new Abstract: The exact location of the solar dynamo remains uncertain--whether it operates primarily in the near-surface shear layer, throughout the entire convection zone, or near the tachocline, a region of sharp transition in the solar rotation, located at the base of the convectio... | https://arxiv.org/abs/2601.03238 | Academic Papers | svg |
8e80e1cf76899f478cc849877f48c7c2b48b5ef22894fd5d7450b6034abe5d72 | 2026-01-07T00:00:00-05:00 | The Squeezed Bispectrum from CHIME HI Emission and Planck CMB Lensing: Current Sensitivity and Forecasts | arXiv:2601.03240v1 Announce Type: new Abstract: Line intensity mapping using atomic hydrogen (HI) has the potential to efficiently map large volumes of the universe if the signal can be successfully separated from overwhelmingly bright radio foreground emission. This motivates cross-correlations, to ascertain the cosmo... | https://arxiv.org/abs/2601.03240 | Academic Papers | svg |
35636502baad594f540ac10f5c250303ae219e860e96e546f329dcf8554a6c1d | 2026-01-07T00:00:00-05:00 | Heavy Black-Holes Also Matter in Standard Siren Cosmology | arXiv:2601.03257v1 Announce Type: new Abstract: With the release of the Gravitational-Wave Transient Catalog GWTC-4.0 by the LIGO-Virgo-KAGRA (LVK) collaboration, 218 candidate detections of gravitational waves (GWs) from compact binary coalescences (CBCs) have been reported. This milestone represents a major advanceme... | https://arxiv.org/abs/2601.03257 | Academic Papers | svg |
12e129b1049decf9238a83496e442f0f992d1cbfa97ed007f9565d134e732925 | 2026-01-07T00:00:00-05:00 | Primordial Black Hole Formation in $f(R)=R+\alpha R^2$ Gravity: Perturbative and Non-Perturbative Analysis | arXiv:2601.02416v1 Announce Type: cross Abstract: We present a complete analytic and semi-analytic study of gravitational collapse and primordial black hole (PBH) formation in the quadratic $f(R)$ model $f(R)=R+\alpha R^2$. We first derive the perturbative expansion around General Relativity (GR), working to first orde... | https://arxiv.org/abs/2601.02416 | Academic Papers | svg |
d42194afc410a9e4ed34e37bbcd4670b77d33e585abfbd5c62cc63fd06ac3fd3 | 2026-01-07T00:00:00-05:00 | Utilizing anticoincidence veto in a search for gravitational-wave transients | arXiv:2601.02713v1 Announce Type: cross Abstract: We devise a technique to suppress the effect of noise transients occurring at gravitational-wave detectors based on temporal anticoincidence. Searches for gravitational-wave signals in the detector data are prone to spurious disturbances of terrestrial origin. The techn... | https://arxiv.org/abs/2601.02713 | Academic Papers | svg |
fbb39f98bf29500308e8830b4fe281e485b20b8b32d6b47e298b08dd3d37b323 | 2026-01-07T00:00:00-05:00 | A Universal Upper Bound on the Pressure-to-Energy Density Ratio in Neutron Stars | arXiv:2601.02980v1 Announce Type: cross Abstract: The equation-of-state (EOS) parameter $\phi \equiv P/\varepsilon$, defined as the ratio of pressure to energy density, encapsulates the fundamental response of matter under extreme compression. Its value at the center of the most massive neutron star (NS), $\x \equiv \p... | https://arxiv.org/abs/2601.02980 | Academic Papers | svg |
012f7b9f5d969479d6aa5e7cfd43aec239d9a0704dacf334813965de69478b1e | 2026-01-07T00:00:00-05:00 | Inflation in Extra-Dimensions with one or two branes | arXiv:2601.02982v1 Announce Type: cross Abstract: In this paper, we study two inflationary models, namely, monomial inflation and the simplest $\alpha$-attractor inflation, within extra-dimensional frameworks. We consider three extra-dimensional setups: Dark Dimension, which embeds one flat extra-dimension to explain t... | https://arxiv.org/abs/2601.02982 | Academic Papers | svg |
8b06df95d1565c17e2f190dfc80afdfa02b9a64d20dac5f2a36d6cc0b906151d | 2026-01-07T00:00:00-05:00 | Standard Model Higgs Peaks: a Note on the Vacuum Instability during Inflation | arXiv:2601.03231v1 Announce Type: cross Abstract: In the Standard Model, the Higgs potential develops an instability at high field values when the quartic self-coupling runs negative. Large quantum fluctuations during cosmic inflation could drive the Higgs field beyond the potential barrier, creating regions that would... | https://arxiv.org/abs/2601.03231 | Academic Papers | svg |
afaec7861ecb1daa1bb4281f958de0e583a25687260f29ff807dbbcd575fcc9b | 2026-01-07T00:00:00-05:00 | Extended Very-High-Energy Gamma-Ray Emission Surrounding PSR J0622 + 3749 Observed by LHAASO-KM2A | arXiv:2106.09396v2 Announce Type: replace Abstract: We report the discovery of an extended very-high-energy (VHE) gamma-ray source around the location of the middle-aged (207.8 kyr) pulsar PSR J0622+3749 with the Large High Altitude Air Shower Observatory (LHAASO). The source is detected with a significance of $8.2\sig... | https://arxiv.org/abs/2106.09396 | Academic Papers | svg |
91a71306a45eb5bfa503088f1130062bfca1f78e143bc1a9523e202bf121e8f5 | 2026-01-07T00:00:00-05:00 | Discovery of the Ultra-high energy gamma-ray source LHAASO J2108+5157 | arXiv:2106.09865v3 Announce Type: replace Abstract: We report the discovery of a UHE gamma-ray source, LHAASO J2108+5157, by analyzing the LHAASO-KM2A data of 308.33 live days. Significant excess of gamma-ray induced showers is observed in both energy bands of 25-100 TeV and $\gt$100 TeV with 9.5 sigma and 8.5 sigma, r... | https://arxiv.org/abs/2106.09865 | Academic Papers | svg |
952f90c278de7be3413c39b5aeccf2288d99e8aa4ab1a39c52ba14011b79a0fd | 2026-01-07T00:00:00-05:00 | Discovery of a new $\gamma$-ray source LHAASO J0341+5258 with emission up to 200TeV | arXiv:2107.02020v4 Announce Type: replace Abstract: We report the discovery of a new unidentified extended $\gamma$-ray source in the Galactic plane named LHAASO J0341+5258 with a pre-trial significance of 8.2 standard deviations above 25 TeV. The best fit position is R.A.$=55.34^{\circ}\pm0.11^{\circ}$ and Dec$=52.97^... | https://arxiv.org/abs/2107.02020 | Academic Papers | svg |
e09a983249975f8cb49ca02c827b0cddcbe96b2800c927dafc6d3a2fd67f12c5 | 2026-01-07T00:00:00-05:00 | Constraints on heavy decaying dark matter from 570 days of LHAASO observations | arXiv:2210.15989v3 Announce Type: replace Abstract: The Kilometer Square Array~(KM2A) of the Large High Altitude Air Shower Observatory (LHAASO) aims at surveying the northern gamma-ray sky at energies above 10 TeV with unprecedented sensitivity. Gamma-ray observations have long been one of the most powerful tools for ... | https://arxiv.org/abs/2210.15989 | Academic Papers | svg |
1141e992bad239fc2691219addb71171f5da1bbf5e5bf1189bf634bc7d78490e | 2026-01-07T00:00:00-05:00 | An Ultrahigh-energy $\gamma$-ray Bubble Powered by a Super PeVatron | arXiv:2310.10100v4 Announce Type: replace Abstract: We report the detection of a $\gamma$-ray bubble spanning at least 100$\rm deg^2$ in ultra high energy (UHE) up to a few PeV in the direction of the star-forming region Cygnus X, implying the presence Super PeVatron(s) accelerating protons to at least 10 PeV. A log-pa... | https://arxiv.org/abs/2310.10100 | Academic Papers | svg |
e2448633ffbbe5fee01fa69a4bc56c02bc782e4a51c4dced91edd2b1ad4e1480 | 2026-01-07T00:00:00-05:00 | Evidence for particle acceleration approaching PeV energies in the W51 complex | arXiv:2407.00624v3 Announce Type: replace Abstract: The $\gamma$-ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays (CRs) accelerated by the shock of supernova remnant (SNR) W51C and the dense molecular clouds in the adjacent star-forming region, W51B. H... | https://arxiv.org/abs/2407.00624 | Academic Papers | svg |
8abb3ae8e0557dff0654d2acd71c71b266727c2361369b0b92bb0a5632f7db21 | 2026-01-07T00:00:00-05:00 | An Enigmatic PeVatron in an Area around HII Region G35.6$-$0.5 | arXiv:2412.00379v2 Announce Type: replace Abstract: Identifying Galactic PeVatrons (PeV particle accelerators) from the ultra-high-energy (UHE, >100 TeV) $\gamma$-ray sources plays a crucial role in revealing the origin of Galactic cosmic rays. The UHE source 1LHAASO J1857+0203u is suggested to be associated with HESS ... | https://arxiv.org/abs/2412.00379 | Academic Papers | svg |
1ac0abd0ead7139f7f86adde05723f283d9b21bb1428eeeee2f65fa3557eaaa8 | 2026-01-07T00:00:00-05:00 | Cross-correlating the patchy screening and kinetic Sunyaev-Zel'dovich effects as a new probe of reionization | arXiv:2501.07623v3 Announce Type: replace Abstract: The kinetic Sunyaev-Zel'dovich effect (kSZ) and patchy screening effect are two complementary cosmic microwave background (CMB) probes of the reionization era. The kSZ effect is a relatively strong signal, but is difficult to disentangle from other sources of temperat... | https://arxiv.org/abs/2501.07623 | Academic Papers | svg |
90ec017f793d58a4047fe1c049db64c723f85b51ffd4ed2004f0a2dafda1f127 | 2026-01-07T00:00:00-05:00 | Constraining the Cosmic-ray Energy Based on Observations of Nearby Galaxy Clusters by LHAASO | arXiv:2502.16499v2 Announce Type: replace Abstract: Galaxy clusters act as reservoirs of high-energy cosmic rays (CRs). As CRs propagate through the intracluster medium, they generate diffuse $\gamma$-rays detectable by arrays such as LHAASO. These $\gamma$-rays result from proton-proton ($pp$) collisions of very high-... | https://arxiv.org/abs/2502.16499 | Academic Papers | svg |
868aa80fc99a9fd1d9c2f75d74ac71e24c26f85e677cd6942c8f1e1e9a97db55 | 2026-01-07T00:00:00-05:00 | Unifying Circumstellar Environment in Broad-Lined Type Ic Radio Supernovae Towards Off-axis Gamma-Ray Burst Exploration | arXiv:2503.13291v2 Announce Type: replace Abstract: Decades have passed since the first confirmed association between a broad-lined Type Ic supernova (Type IcBL SN) and a long gamma-ray burst (GRB), and the number of known GRB-SN associations has steadily increased. However, it is important to note that the radiation f... | https://arxiv.org/abs/2503.13291 | Academic Papers | svg |
806fbb1979c72db8a03dfaca95ace97b98304097e9ddd4bd0184eedb2d361dd4 | 2026-01-07T00:00:00-05:00 | Water ice in the debris disk around HD 181327 | arXiv:2505.08863v2 Announce Type: replace Abstract: Debris disks are exoplanetary systems that contain planets, minor bodies (i.e., asteroids, Kuiper belt objects, comets, etc.), and micron-sized debris dust. Since water ice is the most common frozen volatile, it plays an essential role in the formation of planets and ... | https://arxiv.org/abs/2505.08863 | Academic Papers | svg |
9fadd9f1995df134475b76b37624dc83d50263d48395757fa568c6f520a57e75 | 2026-01-07T00:00:00-05:00 | Going beyond $S_8$: fast inference of the matter power spectrum from weak-lensing surveys | arXiv:2506.16434v3 Announce Type: replace Abstract: Weak lensing surveys are often summarized by constraints on the derived parameter ${S_8\equiv\sigma_8\sqrt{\Omega_{\rm m}/0.3}}$, obscuring the rich scale and redshift information encoded in the data, and limiting our ability to identify the origin of any tensions wit... | https://arxiv.org/abs/2506.16434 | Academic Papers | svg |
1370a7104db1cf6191c1b627d2a01536330193f65af8581fcd37a0bd2361703d | 2026-01-07T00:00:00-05:00 | Constraining the Stellar-to-Halo Mass Relation with Galaxy Clustering and Weak Lensing from DES Year 3 Data | arXiv:2506.22367v3 Announce Type: replace Abstract: We develop a framework to study the relation between the stellar mass of a galaxy and the total mass of its host dark matter halo using galaxy clustering and galaxy-galaxy lensing measurements. We model a wide range of scales, roughly from $\sim 100 \; {\rm kpc}$ to $... | https://arxiv.org/abs/2506.22367 | Academic Papers | svg |
a637454e0f1f8eb26516b6cbb6892b6186403740678e8d292afbc47bfac683a8 | 2026-01-07T00:00:00-05:00 | Helium Atmospheres May Hide in Current Exoplanet Analysis Frameworks | arXiv:2506.22537v2 Announce Type: replace Abstract: The increasing number of detailed exoplanet observations offers an opportunity to refine our analyses and interpretations. Here, we show that atmospheres that appear volatile-rich and/or cloudy may instead be helium-rich. As transmission spectra constrain the atmosphe... | https://arxiv.org/abs/2506.22537 | Academic Papers | svg |
a9f5500a4694af239f9cf2b0f8c3c040ddc9943de1bddc9e4d530004c75805fa | 2026-01-07T00:00:00-05:00 | Effective Theories of Redshift-Space Galaxy Peculiar Velocities | arXiv:2508.00066v2 Announce Type: replace Abstract: We present predictions for redshift-space peculiar velocity statistics in the Lagrangian and Eulerian formulations of the effective field theory (EFT) of large-scale structure. We compute 2-point pairwise velocity statistics up to the second moment at next-to-leading ... | https://arxiv.org/abs/2508.00066 | Academic Papers | svg |
2094721398e9fbee69b5d36799267cdf0268b38ac101daa87bc8035eda1264d9 | 2026-01-07T00:00:00-05:00 | Cosmological Constraints on $f(T,B)$ Gravity from Observations of Early and Late Universe | arXiv:2508.01652v2 Announce Type: replace Abstract: This study proposes a unified framework comprising two complementary approaches to constrain three functional forms of $f(T,B)$ gravity, namely the linear, quadratic, and general power law models, by jointly utilizing early and late Universe observations. First, we im... | https://arxiv.org/abs/2508.01652 | Academic Papers | svg |
69e2c68d6145af271d05ad130cd62975f2c45141f2f89f7d9d236d5478e927e6 | 2026-01-07T00:00:00-05:00 | Supermassive black hole growth from stellar binary encounters | arXiv:2509.02316v3 Announce Type: replace Abstract: The growth of supermassive black holes (SMBHs) remains a central problem in astrophysics, with current observations providing only limited constraints on the underlying mechanisms. One possible growth channel is stellar accretion via the Hills mechanism, wherein a SMB... | https://arxiv.org/abs/2509.02316 | Academic Papers | svg |
fb3aeee654881d60b517c86599c6188162415a1e28e1b45981b2675ecc2869e6 | 2026-01-07T00:00:00-05:00 | A census of quiescent galaxies across $0.5 < z < 8$ with JWST/MIRI: Mass-dependent number density evolution of quiescent galaxies in the early Universe | arXiv:2510.12235v2 Announce Type: replace Abstract: Recent JWST observations have revealed a large population of quiescent galaxies (QGs) at high redshift ($z \sim 4-8$), challenging current models of early galaxy formation and quenching. Accurate number density estimates are crucial but remain uncertain. We present a ... | https://arxiv.org/abs/2510.12235 | Academic Papers | svg |
49264ea2c22a4b546748d995717237fb3129439046bce5eeb40edc05f5137b2e | 2026-01-07T00:00:00-05:00 | Forecasts of constraining isotropic cosmic birefringence on AliCPT-1 | arXiv:2510.21221v2 Announce Type: replace Abstract: Cosmic birefringence (CB) is a promising probe of parity-violating physics beyond the Standard Model, characterized by the rotation of the linear polarization plane of cosmic microwave background (CMB) photons. This effect, quantified by the birefringence angle $\beta... | https://arxiv.org/abs/2510.21221 | Academic Papers | svg |
d3aae3c757311e81c1eea84eed1d52e1b5677ec57315e28829d8a79e7e943333 | 2026-01-07T00:00:00-05:00 | The Advanced X-ray Imaging Satellite (AXIS) Community Science Book | arXiv:2511.00253v2 Announce Type: replace Abstract: The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (AXIS), a next-generation X-ray mission selected by NASA's Astrophysics Probe Program for ... | https://arxiv.org/abs/2511.00253 | Academic Papers | svg |
c25f7e8efee87a47956c2dd1c7a6c031a220820a9cb22592372d8bb1ac207f20 | 2026-01-07T00:00:00-05:00 | LHAASO Detection of Ultra-High-Energy Gamma-Ray Emission toward the Giant Molecular Clouds | arXiv:2511.05015v2 Announce Type: replace Abstract: The $\gamma$-ray from Giant molecular clouds (GMCs) is regarded as the most ideal tool to perform in-situ measurement of cosmic ray (CR) density and spectra in our Galaxy. We report the first detection of $\gamma$-ray emissions in the very-high-energy (VHE) domain fro... | https://arxiv.org/abs/2511.05015 | Academic Papers | svg |
29cc48bc1c9fcbf5d7d7fe8a0412fff39f1a9653e1c7d759bda2b7ad5ef7a887 | 2026-01-07T00:00:00-05:00 | Supermassive Dark Stars and their remnants as a possible solution to three recent cosmic dawn puzzles | arXiv:2511.08477v2 Announce Type: replace Abstract: The James Webb Space Telescope (JWST) has begun to revolutionize our view of the Cosmos. The discovery of Blue Monsters (i.e., ultra-compact yet very bright high-z galaxies) and the Little Red Dots (i.e., very compact dustless strong Balmer break cosmic dawn sources) ... | https://arxiv.org/abs/2511.08477 | Academic Papers | svg |
170833a5c9d40e89091e4dec3dfe87bfae82cd6c6f044ddd7fbcb77abea5b9fc | 2026-01-07T00:00:00-05:00 | Delayed Wind Onset in Pa 30, the Remnant of Type Iax SN 1181 | arXiv:2511.14829v2 Announce Type: replace Abstract: Pa 30 is the recently identified remnant of the historical supernova SN 1181, likely a Type Iax event, and a nebula surrounding the central white dwarf launching a fast wind ($\sim10^9~\cm~\s^{-1}$) is observed in optical and infrared bands. X-ray observations show th... | https://arxiv.org/abs/2511.14829 | Academic Papers | svg |
96c9e5c1d778ad6f447a3e3651823c6cd8b831235b6dbaccfcd1dd0590d677d3 | 2026-01-07T00:00:00-05:00 | Galactic bars are already mature at Cosmic Noon: bar strength and flatness at z ~ 1.5 | arXiv:2512.04163v2 Announce Type: replace Abstract: In this work, we explore the nature of $z>1$ galactic bars. Once thought to be highly transient, our results demonstrate otherwise. Our sample consists of nine massive ($>10^{10.5}\,\rm M_{\odot}$) star-forming barred-spiral galaxies at $z_{\rm spec} \sim 1.5$. Using ... | https://arxiv.org/abs/2512.04163 | Academic Papers | svg |
e05e30d19b5c99ed0f5284b0e8fae358093f451a7b3639912a3ee868a94eaa97 | 2026-01-07T00:00:00-05:00 | Squared-field cross-correlation between kinetic Sunyaev-Zel'dovich effect and 21-cm intensity mapping | arXiv:2512.05588v2 Announce Type: replace Abstract: Neutral hydrogen (HI) 21-cm intensity mapping is an effective method to track the distribution of baryonic matter, and extract astrophysical and cosmological information. The 21-cm intensity field has a nonvanishing cross-correlation with the kinetic Sunyaev-Zel'dovic... | https://arxiv.org/abs/2512.05588 | Academic Papers | svg |
ffb840ee15c97c43595cc73db8dcac5ea1adb899d8e2cc45a3104c0fbc75cb23 | 2026-01-07T00:00:00-05:00 | A high-dynamic-range view of the growth of structure and the warm/hot Universe | arXiv:2512.13818v2 Announce Type: replace Abstract: Baryons heat to temperatures above $>\!\!10^5\,\mathrm{K}$ as they accrete onto massive overdensities -- galaxies, groups, clusters, and filaments -- where they ionize and become optically transparent. Deep mm-wave observations such as those with ALMA have begun to pr... | https://arxiv.org/abs/2512.13818 | Academic Papers | svg |
2a2182ee239af975af200fb61b4b357fe9eb447ab2fd16fe51a854bcee763d14 | 2026-01-07T00:00:00-05:00 | Decoding Cygnus X-2: The Critical Role of Reflection in IXPE Data | arXiv:2601.01669v2 Announce Type: replace Abstract: We present a spectro-polarimetric re-analysis of the first IXPE observation of Cygnus X-2 which we determine to be mainly in the normal branch, from quasi-simultaneous observations with NuSTAR, NICER, and INTEGRAL. We measure the hard X-ray polarization angle and find... | https://arxiv.org/abs/2601.01669 | Academic Papers | svg |
9a55938b430fffee0d1d4cd7eb179c19431cd7f13159cc19bc8ecf99990d1a7c | 2026-01-07T00:00:00-05:00 | Inferring physical parameters of solar filaments from simultaneous longitudinal and transverse oscillations | arXiv:2601.01730v2 Announce Type: replace Abstract: Context. Different modes of oscillations are frequently observed in solar prominences/filaments, and prominence seismology helps estimate important physical parameters like the magnetic field strength. Although the simultaneous detection of longitudinal and transverse... | https://arxiv.org/abs/2601.01730 | Academic Papers | svg |
a117e95e15e5081280bad99989faa2470b81c6d725e17672ed6b68c3250c1315 | 2026-01-07T00:00:00-05:00 | The Betelgeuse Enigma: The Betelbuddy Hypothesis | arXiv:2601.02012v2 Announce Type: replace Abstract: In the past six years, Betelgeuse has been in the news and drawn significant public interest. Starting in October 2019, Betelgeuse underwent a striking dimming event, fading from magnitude 0.5 to 1.7 by mid February 2020 a threefold decrease in brightness This gave ri... | https://arxiv.org/abs/2601.02012 | Academic Papers | svg |
6bbb9b2ad1bf308cb6d3c90d89def157b1aa1881d191fe21c55929d7f314c99a | 2026-01-07T00:00:00-05:00 | Measurement of attenuation length of the muon content in extensive air showers from 0.3 to 30 PeV with LHAASO | arXiv:2410.13173v3 Announce Type: replace-cross Abstract: The attenuation length of the muon content in extensive air showers provides important information regarding the generation and development of air showers. This information can be used not only to improve the description of such showers but also to test fundamen... | https://arxiv.org/abs/2410.13173 | Academic Papers | svg |
ef498377368025826a384461a8e830da113ee5c6173a985aaa1df1c9362b1264 | 2026-01-07T00:00:00-05:00 | Dipole Polarizability of Finite Nuclei as a Probe of Neutron Stars | arXiv:2503.17143v3 Announce Type: replace-cross Abstract: Nuclear ground state and collective excitation properties provide a means to probe the nuclear matter equation of state and establish connections between observables in finite nuclei and neutron stars. Specifically, the electric dipole polarizability, measured w... | https://arxiv.org/abs/2503.17143 | Academic Papers | svg |
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