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2ac97c14a3c42d9e508a566c939f2fe1fd248f6684c556e58ff7a39c1add0289 | 2026-01-16T00:00:00-05:00 | HR-GO II: chemical abundances of low-$E$ retrograde dynamically-tagged-groups: Revealing Thamnos as a very metal-poor substructure | arXiv:2601.09796v1 Announce Type: new Abstract: Milky Way halo substructures identified in dynamical space are known to suffer from contamination from the Milky Way in-situ stars, which makes their accreted origins uncertain. We present detailed chemical abundances of 35 stars belonging to two sets of dynamically tagge... | https://arxiv.org/abs/2601.09796 | Academic Papers | svg |
da2ad349c1573c165cc27d91a9ff4406f3f5eb88fda9a015d591584192bf730f | 2026-01-16T00:00:00-05:00 | Stellar-wind Fueled Accretion onto Sagittarius A* in the Presence of a Nuclear Star Cluster | arXiv:2601.09799v1 Announce Type: new Abstract: The Milky Way's Galactic Center hosts the black hole Sagittarius A* (Sgr A*), which provides us with a close-up view into supermassive black hole accretion and feedback. Recent works have shown that the winds from $\sim 30$ Wolf-Rayet (WR) stars orbiting Sgr A* at about 4... | https://arxiv.org/abs/2601.09799 | Academic Papers | svg |
1f898b93c2916b9c1ab9ce615975ad63ef195d8ed7e9d26a615586b7067ffed7 | 2026-01-16T00:00:00-05:00 | Dark energy driven by an oscillating generalised axion-like quintessence field | arXiv:2601.09803v1 Announce Type: new Abstract: Generalised axion-like scalar fields provide a well-motivated framework for describing the late-time acceleration of the Universe. As the field evolves, it rolls down its potential and, depending on its mass and initial conditions, it may either still be approaching the m... | https://arxiv.org/abs/2601.09803 | Academic Papers | svg |
c5709385649ddaaf015cfc743c2e9d23298add14c81e727280104c57bd719e20 | 2026-01-16T00:00:00-05:00 | Simulating the photospheric to coronal plasma using magnetohydrodynamic characteristics III: validation including gravity, flux emergence, and an eruption | arXiv:2601.09804v1 Announce Type: new Abstract: Solar eruptions arise from instabilities or loss of equilibria in the solar atmosphere, but routinely inferring the precise magnetic and plasma properties that lead to eruptions is not currently practical using synoptic solar observations. Data driven simulations offer an... | https://arxiv.org/abs/2601.09804 | Academic Papers | svg |
529ffecce8b0671724bec34827c5dc7b140adea6b61ceaae0374402985f14a67 | 2026-01-16T00:00:00-05:00 | Magnetic Pumping: Plasma Heating to Particle Acceleration | arXiv:2601.09807v1 Announce Type: new Abstract: One of the earliest mechanisms proposed for plasma heating was magnetic pumping (MP). However, its significance for astrophysical phenomena, including particle acceleration, has yet to be appreciated. MP-energized particles tap energy from magnetic-field oscillations. A p... | https://arxiv.org/abs/2601.09807 | Academic Papers | svg |
cebea1a51a3c0b701f758691f0e38afb01e4d9ccd6a3877078ee13cd9a53f010 | 2026-01-16T00:00:00-05:00 | Calibrating Mid-Infrared Emission Features As Diagnostics of Star Formation in Infrared-Luminous Galaxies via Radiative Transfer Modeling | arXiv:2601.09810v1 Announce Type: new Abstract: Luminous infrared galaxies are key sites of obscured stellar mass assembly at z > 0.5. Their star formation rates (SFRs) are often estimated using the luminosities of the 6.2 micron and 11.2 micron polycyclic aromatic hydrocarbon (PAH) features, or those of the [Ne II] an... | https://arxiv.org/abs/2601.09810 | Academic Papers | svg |
1842c83006fb6ab84d82ad6d7d6635cfb686e9d0d45771d7c424d895392757aa | 2026-01-16T00:00:00-05:00 | A Robust Launching Mechanism for Freely-Floating Planets from Host Stars with Close-in Planets | arXiv:2601.09835v1 Announce Type: new Abstract: Secular perturbations from binary stars and distant massive planets can drive cold planets onto nearly parabolic orbits with pericenter passages extremely close to their host stars. Meanwhile, short-period super-Earths are frequently observed around nearby stars. Gravitat... | https://arxiv.org/abs/2601.09835 | Academic Papers | svg |
a27062f6edf3650a72bd3663bc787cb67dd1a90205db6be0b9364b545695957d | 2026-01-16T00:00:00-05:00 | Are Recently Quenched Ellipticals Truly Isolated Centrals? | arXiv:2601.09846v1 Announce Type: new Abstract: Recently Quenched Ellipticals (RQEs) provide a valuable test case for disentangling intrinsic and environmental quenching, particularly because they are commonly classified as isolated central galaxies in low-mass halos. However, central/satellite assignments and isolatio... | https://arxiv.org/abs/2601.09846 | Academic Papers | svg |
26b0d50700dbddfb68054ff2ade75587032e7ebde7c713836efe3a2af192cd57 | 2026-01-16T00:00:00-05:00 | Gravitational Wave Strain and Orbital Dynamics of Binary Pulsars from LIGO-Virgo to LISA | arXiv:2601.09863v1 Announce Type: new Abstract: We summarize the current state of the art and calculate gravitational wave strain amplitudes for known binary pulsars, using data from current ground-based detectors (LIGO-Virgo-KAGRA) and the upcoming space-based missions (LISA). We present detailed calculations of the c... | https://arxiv.org/abs/2601.09863 | Academic Papers | svg |
38785c574cb81efe3bec1b1837fcacd61d068e8e050eaa8d7e6b5a24687a4661 | 2026-01-16T00:00:00-05:00 | Dynamics of Apsidal Motion in Non-Synchronous Binary Pulsars Coupled Orbit and Spin Evolution | arXiv:2601.09868v1 Announce Type: new Abstract: The apsidal motion of a non-synchronous binary pulsar serves as a valuable probe of relativistic gravity, stellar stricture, and dynamical evolution of close binary systems, In this study, we investigate the combined influence of general relativity, stellar oblateness and... | https://arxiv.org/abs/2601.09868 | Academic Papers | svg |
b6fe115b3ad1240002efaa8e082634ebd2341ce8994d91c097534d7b1047d16c | 2026-01-16T00:00:00-05:00 | Monitoring of Continuous-Wave Hardware Injections in LIGO Interferometers during the O4 Observing Run | arXiv:2601.09918v1 Announce Type: new Abstract: Although there have now been hundreds of transient gravitational-wave detections of merging compact stars by the LIGO-Virgo-KAGRA (LVK) detector network, no continuous-wave (CW) signals have yet been discovered. To ensure that such signals, expected to be exceedingly weak... | https://arxiv.org/abs/2601.09918 | Academic Papers | svg |
0301a4eddd5e5c35665d6e722bee2652be65402dfc192eefa9ed75d828e3167e | 2026-01-16T00:00:00-05:00 | Beyond UV: Rest-frame B-band and Apparent Luminosity Functions of z=5-9 Galaxies | arXiv:2601.09948v1 Announce Type: new Abstract: We present new measurements of galaxy luminosity functions (LFs) from JWST/NIRCam imaging over the redshift range z=4.5-9.7, using photometric catalogs from JADES and public extragalactic fields. Our analysis includes rest-frame UV and B-band LFs, as well as apparent LFs ... | https://arxiv.org/abs/2601.09948 | Academic Papers | svg |
f25b6d122c81d28f4cabd55562c0d749ed0de87a2abf1069e21ad3860e72df4c | 2026-01-16T00:00:00-05:00 | Caught in Swallowtails: Discovery of Two Swallowtail Image Formations in MS 0451.6-0305 | arXiv:2601.10097v1 Announce Type: new Abstract: We report the discovery of two swallowtail image formations at $z=2.91$ and $z=6.70$ behind the galaxy cluster MS 0451.6-0305 in JWST-NIRCam imaging. We find that in both of the above lensed systems, the complex image morphology cannot be reproduced by simple fold/cusp ca... | https://arxiv.org/abs/2601.10097 | Academic Papers | svg |
f9a8a71932bf918a5b6bd2e915320869292f1d33782c570e4ac156f857832f7d | 2026-01-16T00:00:00-05:00 | Using rapid rotators as tracers of multiplicity statistics as a function of stellar density | arXiv:2601.10099v1 Announce Type: new Abstract: Recent works have identified that rapidly rotating stars are predominantly binaries with separations of a few to a few tenths of au. This is a crucial range of separation that is often inaccessible to searches of binary stars, providing a unique opportunity to examine the... | https://arxiv.org/abs/2601.10099 | Academic Papers | svg |
d0b1763bc72df1e99a42be9a777e150a53e55ec5df058bd48ed6ada40fb0fc8c | 2026-01-16T00:00:00-05:00 | Direct Detection of Type II-P Supernova Progenitors with the Euclid and CSST Surveys | arXiv:2601.10121v1 Announce Type: new Abstract: A central goal in supernova (SN) research is to identify and characterize their progenitors. However, this is very difficult due to the limited archival images with sufficient depth and spatial resolution required for direct progenitor detection and due to the circumstell... | https://arxiv.org/abs/2601.10121 | Academic Papers | svg |
dcef5b027ac7571cb2caae5ce1681aaa1c215664b31c700e5e7f57c1c8c7a9a4 | 2026-01-16T00:00:00-05:00 | The BINGO project X. Cosmological parameter constraints from HI Intensity Mapping lognormal simulations | arXiv:2601.10152v1 Announce Type: new Abstract: Building on the transformative success of optical redshift surveys, the emerging technique of neutral hydrogen (HI) intensity mapping (IM) offers a novel probe of large-scale structure (LSS) growth and the late-time accelerated expansion of the universe. We present cosmol... | https://arxiv.org/abs/2601.10152 | Academic Papers | svg |
9a233efea34286d852dd38313dac601fe0c5b19de890b10270c26b1a19ab3416 | 2026-01-16T00:00:00-05:00 | A Highly Magnetic Ultra Massive White Dwarf with a 23-minute Rotation Period | arXiv:2601.10188v1 Announce Type: new Abstract: We present a physical characterization of TMTS J00063798+3104160 (J0006), a rapidly rotating,ultra-massive white dwarf (WD) identified in high-cadence light curves from the Tsinghua University-Ma Huateng Telescope for Survey (TMTS). A coherent 23-minute periodicity is det... | https://arxiv.org/abs/2601.10188 | Academic Papers | svg |
16d5942e2e6ccb3b35e84a02825d4f7b960a0a5d3ed56617471730b0f0b5aca3 | 2026-01-16T00:00:00-05:00 | Large-scale time-series spectroscopy for stellar ages | arXiv:2601.10240v1 Announce Type: new Abstract: To date, Galactic Astronomy has largely concerned itself with astrophysical processes, and with the locations, space motions and compositions of objects. Consider, for example, the elucidation of the components of the Galaxy over the past decades, its mapping as enabled b... | https://arxiv.org/abs/2601.10240 | Academic Papers | svg |
d3daecfc810438e39cac8e2cf84437d90efffbdca17c912cec04e515ccf50276 | 2026-01-16T00:00:00-05:00 | Cycle dependence of helioseismic oscillations above the acoustic cut-off frequency | arXiv:2601.10283v1 Announce Type: new Abstract: Helioseismic and recent asteroseismic observations reveal fine structure in the power spectrum with alternating peaks and troughs above the acoustic cut-off frequency. This structure is interpreted as the interference patterns of high-frequency acoustic waves excited in t... | https://arxiv.org/abs/2601.10283 | Academic Papers | svg |
af3dcccce51e046dae10413f5b52e464849483490f3f8bb40d6752b3d39871f8 | 2026-01-16T00:00:00-05:00 | How disc initial conditions sculpt the atmospheric composition of giant planets | arXiv:2601.10285v1 Announce Type: new Abstract: Past studies have revealed the dependency of the disc parameters (mass, radius, viscosity, grain fragmentation velocity, dust-to-gas ratio) on the formation of giant planets, where more massive discs seem beneficial for giant planet formation. It is unclear how the differ... | https://arxiv.org/abs/2601.10285 | Academic Papers | svg |
b1cadac942b534c12bd652e0cc3ca7929499504e1226235331a102d0faaa1f11 | 2026-01-16T00:00:00-05:00 | Effect of Primordial Black Holes on the global 21-cm signal | arXiv:2601.10304v1 Announce Type: new Abstract: The 21-cm global signal, a treasure trove of information about the nature of the first luminous sources of the Universe, has traditionally been modelled assuming that these early sources were predominantly star-forming galaxies. However, recent observations by the James W... | https://arxiv.org/abs/2601.10304 | Academic Papers | svg |
9a9305a6a7e223151c4b5a31cd88ff24902851ca0dafafd39be85a2e61803f59 | 2026-01-16T00:00:00-05:00 | Extracting intrinsic alignments in the Dark Energy Survey's year 1 data, using the self-calibration method and LSST-DESC tools | arXiv:2601.10314v1 Announce Type: new Abstract: We present the implementation of a Self-Calibration of Intrinsic Alignments of galaxies as an extension to the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) Dark Energy Science Collaboration (DESC)'s weak lensing 3x2pt pipeline (TXPipe). As a demonstr... | https://arxiv.org/abs/2601.10314 | Academic Papers | svg |
88ab563f07f537684da75ecb34f5929516de98c7548aba1c5fa3868b767d912f | 2026-01-16T00:00:00-05:00 | Multimessenger Prospects for Low-Luminosity Gamma-Ray Bursts: Joint Neutrino and X-Ray Observations | arXiv:2601.10317v1 Announce Type: new Abstract: Low--luminosity gamma-ray bursts (LLGRBs) are promising candidates for high-energy neutrinos, yet no coincident neutrino events have been detected so far. Recent advances in X-ray time-domain astronomy, together with the development of next-generation neutrino telescopes,... | https://arxiv.org/abs/2601.10317 | Academic Papers | svg |
159ae0a195b4bf885bee854e61d43afff668a986e97b7b1a377df41c8f5ee24b | 2026-01-16T00:00:00-05:00 | Testing the correlation between bending angle and polarization properties of bent radio galaxies | arXiv:2601.10361v1 Announce Type: new Abstract: The bending of radio galaxies in galaxy clusters is expected to be caused by interactions with the local environment. The physical processes responsible for jet bending, and their influence on the polarization properties of radio galaxies, remain poorly understood, leadin... | https://arxiv.org/abs/2601.10361 | Academic Papers | svg |
eed52eba20f9065ca798b577547e2adace543a915f8bea3956fd291ee6be3658 | 2026-01-16T00:00:00-05:00 | Active Galactic Nuclei and STaR fOrmation in Nearby Galaxies (AGNSTRONG). II: Results for Jetted Type-I AGNs with Strong Ionized Gas Outflows | arXiv:2601.10372v1 Announce Type: new Abstract: We investigate the correlation between ionized gas outflows, jets, and star formation in a sample of 42 local type-I active galactic nuclei (AGNs) exhibiting significant [O III] outflows. This study uses both new submillimeter (sub-mm) observations and archival data from ... | https://arxiv.org/abs/2601.10372 | Academic Papers | svg |
f46c708466506e3b7dedf287f238aa4f137b5c92ef046ade70ff151def9ccda7 | 2026-01-16T00:00:00-05:00 | Long Period Transients (LPTs): a comprehensive review | arXiv:2601.10393v1 Announce Type: new Abstract: Long Period Transients (LPTs) are a recently identified class of sources characterized by periodic radio bursts lasting seconds to minutes, with flux densities that might reach several tens of Jy. These radio bursts repeat with periodicity from minutes to hours, and they ... | https://arxiv.org/abs/2601.10393 | Academic Papers | svg |
281a57629a72b028e7f34eb38d62694686a6b51f25daff802519f614a6955697 | 2026-01-16T00:00:00-05:00 | Spectroscopic follow-up of Gaia alerted Young Stellar Object variables: the Large Binocular Telescope view | arXiv:2601.10404v1 Announce Type: new Abstract: We analyzed optical/near-IR Large Binocular Telescope spectra of 16 sources alerted by Gaia between 2021 and 2024 due to significant photometric variability. Half of the spectra were taken during quiescence and the rest during a burst or at intermediate brightness. Our an... | https://arxiv.org/abs/2601.10404 | Academic Papers | svg |
de10ecb44646d01eec42bf4d2a618df57ef09f7fa42296dca4437e51da31993e | 2026-01-16T00:00:00-05:00 | ASTRA: A Python Package for Cross-Instrument Stellar and Telluric Template Construction | arXiv:2601.10439v1 Announce Type: new Abstract: ASTRA is a Python package that provides a modular, instrument-independent interface for working with high-resolution stellar spectra. Designed to support data from multiple spectrographs, including ESPRESSO (Pepe et al., 2021), HARPS (Mayor et al., 2003; Pepe et al., 2002... | https://arxiv.org/abs/2601.10439 | Academic Papers | svg |
95faf2525d1094c7389bdfe67539e6969c5dd2e243013853b26cda90df5e9920 | 2026-01-16T00:00:00-05:00 | TOI-3862 b: A dense super-Neptune deep in the hot Neptune desert | arXiv:2601.10450v1 Announce Type: new Abstract: The structure and evolution of close-in exoplanets are shaped by atmospheric loss and migration processes, which give rise to key population features such as the hot Neptune desert, ridge, and savanna - regions of the period-radius space whose boundaries offer critical in... | https://arxiv.org/abs/2601.10450 | Academic Papers | svg |
c7f5294d62fe448d421c1ae59f503855839bccc8f90403cf28a9472519a8b30c | 2026-01-16T00:00:00-05:00 | Alertissimo -- a tool for orchestration of LSST broker streams | arXiv:2601.10454v1 Announce Type: new Abstract: The Vera C. Rubin Observatory, through its Legacy Survey of Space and Time, will soon start producing 10 million alerts on transient astronomical objects per night. Due to logistics and bandwidth, alerts will not be dispatched directly to the public but to 'brokers' i.e. ... | https://arxiv.org/abs/2601.10454 | Academic Papers | svg |
655dea3bcd6daed9ce56a89bbcbd9f0c49dd6051c7ccf213bd1c6ac70196610d | 2026-01-16T00:00:00-05:00 | sponchpop II: Population Synthesis to Investigate Volatile Sulfur as a Fingerprint of Gas Giant Formation Histories | arXiv:2601.10508v1 Announce Type: new Abstract: Planet population synthesis is an integral tool for linking exoplanets to their formation environments. Most planet population synthesis studies have focused on the carbon-to-oxygen ratio (C/O) in gas or solids, yet more insight into planet formation may be afforded by co... | https://arxiv.org/abs/2601.10508 | Academic Papers | svg |
614a56090b4e104a09f7a9db8f5b2fcc639b63790c8918dd9d5756019a072c3e | 2026-01-16T00:00:00-05:00 | Discovery of the First Five Carbon-Enhanced Metal-Poor Stars in the LMC | arXiv:2601.10514v1 Announce Type: new Abstract: A substantial fraction of metal-poor stars in the local Milky Way halo exhibit large overabundances of carbon. These stars, dubbed Carbon-Enhanced Metal-Poor (CEMP) stars, provide crucial constraints on the nature of the early universe including the earliest nucleosynthet... | https://arxiv.org/abs/2601.10514 | Academic Papers | svg |
f6619399b031687d6b51dbdf838f7117c123da670c791b375a3b1bb8e155deba | 2026-01-16T00:00:00-05:00 | Shock Signatures of the Successive Type-II Solar Radio Bursts at Meter Wavelength | arXiv:2601.10528v1 Announce Type: new Abstract: The successive type-II solar radio bursts observed on 31 July 2012 by the Bruny Island Radio Spectrometer (BIRS) in the frequency range between 62 - 6 MHz is reported and analyzed. The first type-II radio burst shows clear fundamental and harmonic band structures, while o... | https://arxiv.org/abs/2601.10528 | Academic Papers | svg |
463242690aa67793098c2118e9a8b7dd74681dd52b154d818c64801ab26d40f9 | 2026-01-16T00:00:00-05:00 | Origins of the UV continuum and Balmer emission lines in Little Red Dots: observational validation of dense gas envelope models enshrouding the AGN | arXiv:2601.10573v1 Announce Type: new Abstract: We present a statistical study on the origins of the UV continuum and narrow/broad emission lines in little red dots (LRDs), a newly discovered class of active galactic nuclei (AGNs). Leveraging all archived JWST/NIRSpec data, we build a sample of 28 spectroscopically-con... | https://arxiv.org/abs/2601.10573 | Academic Papers | svg |
1fc22ae0d8612a946e98796cc8c598569b22f7dded37a3959908eb110263ac8b | 2026-01-16T00:00:00-05:00 | HST Observations of HD 166620 and Tau Ceti: First UV Spectra of a Magnetic Grand Minimum Star and the Extent of Tau Ceti's Astrosphere | arXiv:2601.10579v1 Announce Type: new Abstract: We present new Hubble Space Telescope (HST) UV spectra of the K2 V star HD 166620, the first star clearly recognized to be in a "magnetic grand minimum" state analogous to the Sun's "Maunder Minimum" in the late 1600's. The stellar H I Lyman-alpha surface fluxes are extre... | https://arxiv.org/abs/2601.10579 | Academic Papers | svg |
c33e16665ab040ce210814ab79ee53f2996d4c3e3be3bcd0e1430ec654268ac5 | 2026-01-16T00:00:00-05:00 | Canceling Effects of Conjunctions Render Higher Order Mean Motion Resonances Weak | arXiv:2601.10585v1 Announce Type: new Abstract: Mean motion resonances (MMRs) are a key phenomenon in orbital dynamics. The traditional disturbing function expansion in celestial mechanics shows that, at low eccentricities, $p$:$p-q$ MMRs exhibit a clear hierarchy of strengths, scaling as $e^q$, where $q$ is the order ... | https://arxiv.org/abs/2601.10585 | Academic Papers | svg |
3cc069bfe8cc26d79d34b20aed5e9707ca049c6b760c7b146af486afa9266446 | 2026-01-16T00:00:00-05:00 | High-fidelity stellar extinction with Gaia and APOGEE -- I. The method and a new extinction curve | arXiv:2601.10595v1 Announce Type: new Abstract: The scarcity of high-fidelity extinction measurements remains a bottleneck in deriving accurate stellar properties from Gaia parallaxes. In this work, we aim to derive precision extinction estimates for APOGEE DR19 stars, establishing a new benchmark for Galactic stellar ... | https://arxiv.org/abs/2601.10595 | Academic Papers | svg |
50f6f459885d0977ab5299303ad8b3b185f63fb1730b12599601d29e6d50e32b | 2026-01-16T00:00:00-05:00 | A young progenitor for the most common planetary systems in the Galaxy | arXiv:2601.10598v1 Announce Type: new Abstract: The Galaxy's most common known planetary systems have several Earth-to-Neptune-size planets in compact orbits. At small orbital separations, larger planets are less common than their smaller counterparts by an order of magnitude. The young star V1298 Tau hosts one such co... | https://arxiv.org/abs/2601.10598 | Academic Papers | svg |
35ef2d3a4bfbb26e4de603b34b21d8e0bc45a06eb54ca50bc4d08d73180124cf | 2026-01-16T00:00:00-05:00 | On the Physical Origins of the Millimeter Fundamental Plane in Active Galactic Nuclei | arXiv:2601.10612v1 Announce Type: new Abstract: Observations of active galactic nuclei have revealed a correlation between millimeter luminosity, X-ray luminosity, and mass, suggesting the emission in each of these bands is powered by a common source. Starting with a set of five general relativistic magnetohydrodynamic... | https://arxiv.org/abs/2601.10612 | Academic Papers | svg |
b7ab35181adc6d38afdb21c723f1a492694425553798efb85b5d543d862f156b | 2026-01-16T00:00:00-05:00 | Circumplanetary Disk Candidate in the Disk of HD 163296 Traced by Localized Emission from Simple Organics | arXiv:2601.10631v1 Announce Type: new Abstract: Atacama Large Millimeter/submillimeter Array observations suggest that the disc of HD 163296 is being actively shaped by embedded, yet unseen protoplanets, as indicated by numerous gas and dust substructures consistent with planet-disc interaction models. We report the fi... | https://arxiv.org/abs/2601.10631 | Academic Papers | svg |
60e915db009cf5df22fe87430ff692303408f6c0b61b5e87350d68b970a7066c | 2026-01-16T00:00:00-05:00 | WEAVE imaging spectroscopy of NGC 6720: an iron bar in the Ring | arXiv:2601.10635v1 Announce Type: new Abstract: We present spatially resolved spectroscopic observations of the planetary nebula NGC 6720, the Ring Nebula, taken during the science verification phase of WEAVE, a new instrument mounted on the William Herschel Telescope on La Palma. We use the instrument's Large Integral... | https://arxiv.org/abs/2601.10635 | Academic Papers | svg |
baf68723f066edd7a00ed5531fddb40ae1702c30de1d1e149937c60e2f5b812b | 2026-01-16T00:00:00-05:00 | Measuring the Coronal Magnetic Field with 2D Coronal Seismology: A Forward-Modeling Validation | arXiv:2601.10637v1 Announce Type: new Abstract: In recent years, a two-dimensional (2D) coronal seismology technique applied to spectral-imaging data from the Coronal Multi-channel Polarimeter (CoMP) and UCoMP has enabled routine measurement of the global coronal magnetic field. The technique combines coronal transvers... | https://arxiv.org/abs/2601.10637 | Academic Papers | svg |
274a0a704f57e73e5b8621c19af2c1534860174f7885b207e0410873a5986832 | 2026-01-16T00:00:00-05:00 | Cosmoglobe DR2. VI. Disentangling hot and cold thermal dust emission with Planck HFI | arXiv:2601.10640v1 Announce Type: new Abstract: We present a four-component high-resolution model of thermal dust emission for microwave and sub-mm frequencies derived from Planck HFI, WHAM and Gaia. The resulting high-resolution model derived here forms the basis for the thermal dust model employed in the Cosmoglobe D... | https://arxiv.org/abs/2601.10640 | Academic Papers | svg |
9a0457c68a8344ba468030e05a224d39cc8e31cf834d0fea9f491ecd9cffd9d6 | 2026-01-16T00:00:00-05:00 | HII regions in NGC 628: the view of two catalogs | arXiv:2601.10642v1 Announce Type: new Abstract: The study is devoted to comparing the parameters of the interstellar medium of HII regions in the Kongiu and Groves catalogs for the galaxy NGC 628. The article analyzes the characteristics of star-forming regions, including a comparison of radiation fluxes in the ranges ... | https://arxiv.org/abs/2601.10642 | Academic Papers | svg |
45fc4bddb8ce1aa78ded19435461f892e10d3c3e486a3761ec9ccbfb7d7e81c8 | 2026-01-16T00:00:00-05:00 | Observation Timelines for the Potential Lunar Impact of Asteroid 2024 YR4 | arXiv:2601.10666v1 Announce Type: new Abstract: The near-Earth asteroid 2024 YR4 -- a $\sim$60 m rocky object that was once considered a potential Earth impactor -- has since been ruled out for Earth but retained a $\sim$4.3% probability of striking the Moon in 2032. Such an impact, with equivalent kinetic energy of $\... | https://arxiv.org/abs/2601.10666 | Academic Papers | svg |
b4f84e8982553341be8e0a97c4a3c19150ee0404c4b4389a75a6065aaec997c2 | 2026-01-16T00:00:00-05:00 | MHD modelling of open flux evolution around solar maximum by coronal model COCONUT | arXiv:2601.10675v1 Announce Type: new Abstract: To evaluate impact of temporal evolution and commonly used harmonic filtering of magnetograms, and the empirically defined oversimplified heating source terms on open-field distributions, we use a series of hourly-updated magnetograms, preprocessed by the 10th- and 50th-o... | https://arxiv.org/abs/2601.10675 | Academic Papers | svg |
435f38ea33ca25e2d6616a51ca8847292fe99c5e6dc36e146fbe04570d306be0 | 2026-01-16T00:00:00-05:00 | Late-time acceleration without a vacuum term in ${f(R,L_m)}$ gravity: scaling deSitter dynamics and parameter constraints | arXiv:2601.10699v1 Announce Type: new Abstract: We investigate late-time cosmic acceleration in $f(R,L_m)$ gravity driven by nonlinear matter contributions, focusing on the class $f(R,L_m)=R/2+c_1 L_m+c_n L_m^{n}+c_0$ with the explicit choice $L_m=\rho_m$ and an uncoupled radiation sector. We analyze two realizations: ... | https://arxiv.org/abs/2601.10699 | Academic Papers | svg |
d1d29c6590553154614ac344a034521c1658fd40c7a00d3b833cf2c04b469f46 | 2026-01-16T00:00:00-05:00 | Euclid preparation. 3D reconstruction of the cosmic web with simulated Euclid Deep spectroscopic samples | arXiv:2601.10709v1 Announce Type: new Abstract: The ongoing Euclid mission aims to measure spectroscopic redshifts for approximately two million galaxies using the H $\alpha$ line emission detected in near-infrared slitless spectroscopic data from the Euclid Deep Fields (EDFs). These measurements will reach a flux limi... | https://arxiv.org/abs/2601.10709 | Academic Papers | svg |
a6df38c6131c4b9ab205bd070e4a41379d22c9ac42cf44700c5c48b783545247 | 2026-01-16T00:00:00-05:00 | When spacetime vibrates: An introduction to gravitational waves | arXiv:2512.22679v1 Announce Type: cross Abstract: This article presents a comprehensive analysis of the physics of gravitational waves, exploring both the theoretical foundations and the most recent experimental advances. After a general introduction to the theory of general relativity and its major implications, the a... | https://arxiv.org/abs/2512.22679 | Academic Papers | svg |
b456d23ea1d26c9d0d9d98ab1158bf715d9439576760eb29415e3003f353757d | 2026-01-16T00:00:00-05:00 | Classical equipartition dynamics between axions and non-Abelian gauge fields | arXiv:2601.09784v1 Announce Type: cross Abstract: Motivated by axion-like inflation and its warm embedding within the Standard Model, we study the early stages of the energy transfer between an axion condensate and an SU(2) gauge ensemble, by employing non-linear classical real-time lattice simulations. The discretized... | https://arxiv.org/abs/2601.09784 | Academic Papers | svg |
5c206261a440f90d2c23a90ef4e199f18ee208f53b7b8be613c99fb3f845127c | 2026-01-16T00:00:00-05:00 | Microscopic Description of Critical Bubbles | arXiv:2601.09787v1 Announce Type: cross Abstract: First-order phase transitions occur through the nucleation of critical bubbles of the stable phase within the metastable phase. Using holography, we present a fully microscopic description of these bubbles in a strongly coupled, four-dimensional gauge theory at finite t... | https://arxiv.org/abs/2601.09787 | Academic Papers | svg |
aef210ef9c1bfe38758065aa2daae4e5f94a105ae5de7959af4bc6f2be6d009c | 2026-01-16T00:00:00-05:00 | The Cosmic Neutrino Background is within Reach of Future Neutrino Telescopes | arXiv:2601.09790v1 Announce Type: cross Abstract: The cosmic neutrino background (C$\nu$B) can be boosted to high energies due to scatterings with energetic cosmic rays (CRs) across cosmological scales. Previous calculations focused on neutral current incoherent and coherent elastic scatterings of cosmic-ray protons of... | https://arxiv.org/abs/2601.09790 | Academic Papers | svg |
1acc5a383f6f5dbcabd4c9af537443802d9dc4958573a22d94a1dff179c55c2d | 2026-01-16T00:00:00-05:00 | Multibanded Reduced Order Quadrature Techniques for Gravitational Wave Inference | arXiv:2601.09819v1 Announce Type: cross Abstract: Reduced-order quadrature (ROQ) is commonly used to speed up parameter estimation in gravitational wave astronomy; however, the construction of ROQ bases can be computationally costly, particularly for longer duration signals. We propose a modified construction strategy ... | https://arxiv.org/abs/2601.09819 | Academic Papers | svg |
f1ba550c24fc3ff1dde30f0756b537423e692487f78c88d13de8bdc7c32543d1 | 2026-01-16T00:00:00-05:00 | Very-High-Frequency Gravitational Waves from Multi-Monodromy Inflation | arXiv:2601.09834v1 Announce Type: cross Abstract: We show that in multi-stage axion monodromy inflation an interruption near the end of the penultimate stage can lead to a spike in the gravitational wave background. These gravitational waves are in the frequency range and with an amplitude accessible to proposed terres... | https://arxiv.org/abs/2601.09834 | Academic Papers | svg |
2bdbcf5b529205a460e577d968e85edb80fdeb860b6c34f02830bc98f3dce712 | 2026-01-16T00:00:00-05:00 | The recipe for the degrees of freedom | arXiv:2601.10288v1 Announce Type: cross Abstract: We consider the question of counting the degrees of freedom in theoretical models, with an emphasis on theories of fields and gravity. Among the possible approaches, the Hamiltonian formulation remains one of the most systematic and robust tools. However, it can easily ... | https://arxiv.org/abs/2601.10288 | Academic Papers | svg |
9446d0ec11ba7e22762e822767edbaf577d6fb4c3a79620fa9b5ecfe01e2fa5c | 2026-01-16T00:00:00-05:00 | Effects of spontaneous Lorentz Symmetry breaking on Letelier-AdS charged black boles within Kalb-Ramond gravity | arXiv:2601.10303v1 Announce Type: cross Abstract: In this study, we investigate the geodesic motion of massless particles -- specifically photons -- in the spacetime of a charged anti-de Sitter (AdS) black hole (BH) surrounded by a cloud of strings (CoS) within the framework of Kalb-Ramond (KR) gravity. We analyze the ... | https://arxiv.org/abs/2601.10303 | Academic Papers | svg |
d69cc664b6b3b66171588588440d261cda156753605749da08a16d29c17b4dc0 | 2026-01-16T00:00:00-05:00 | Charged Simpson-Visser AdS Black Holes: Geodesic Structure and Thermodynamic Properties | arXiv:2601.10469v1 Announce Type: cross Abstract: In this article, we apply the Simpson-Visser (SV) regularization scheme to Anti-de Sitter (AdS) charged black holes and investigate the resulting spacetime geometry in detail, with emphasis on both geodesic structure and thermodynamic behavior. In particular, we analyze... | https://arxiv.org/abs/2601.10469 | Academic Papers | svg |
24c5521a55eb0afe2fa45f86b79d605d049748a04870e5278b129b0d3d854a97 | 2026-01-16T00:00:00-05:00 | Numerical simulations of oscillating and differentially rotating neutron stars | arXiv:2601.10550v1 Announce Type: cross Abstract: The remnants of binary neutron star mergers are expected to be massive, rapidly rotating stars whose oscillations produce gravitational waves in the kilohertz band. The degree of differential rotation and the rotation profiles strongly influence their structure, stabili... | https://arxiv.org/abs/2601.10550 | Academic Papers | svg |
b985d8712fb7dabb6e5541413a74a550a213b881c26f075053c28cac0b2eb2bc | 2026-01-16T00:00:00-05:00 | Multiple Populations and a CH Star Found in the 300S Globular Cluster Stellar Stream | arXiv:2401.02476v2 Announce Type: replace Abstract: Milky Way globular clusters (GCs) display chemical enrichment in a phenomenon called multiple stellar populations (MSPs). While the enrichment mechanism is not fully understood, there is a correlation between a cluster's mass and the fraction of enriched stars found t... | https://arxiv.org/abs/2401.02476 | Academic Papers | svg |
0fcd5b2786dd01ca788aef9a55e23b693222619ef1d98c45f35ce0c5ded05176 | 2026-01-16T00:00:00-05:00 | Unified Origin of Curvature Perturbation and Baryon Asymmetry of the Universe | arXiv:2410.07694v3 Announce Type: replace Abstract: We propose a unified framework that describes both the curvaton mechanism for generating primordial density fluctuations and the Affleck-Dine (AD) mechanism for baryogenesis. By introducing a complex scalar field (AD field) carrying a baryon/lepton number and its pote... | https://arxiv.org/abs/2410.07694 | Academic Papers | svg |
c11a9548223d2b989272bc1ff2949f91084c70126ddd3fcb5979cb213b0f403f | 2026-01-16T00:00:00-05:00 | Neutrino and pair creation in reconnection-powered coronae of accreting black holes | arXiv:2410.12638v5 Announce Type: replace Abstract: A ubiquitous feature of accreting black hole systems is their hard X-ray emission which is thought to be produced through Comptonization of soft photons by electrons and positrons in the vicinity of the black hole, in a region with optical depth of order unity. The or... | https://arxiv.org/abs/2410.12638 | Academic Papers | svg |
a2d95ef3891d80b2363ff9113138020a6665c2c61222420ccc310394bd0aee3d | 2026-01-16T00:00:00-05:00 | Gravitational-Wave Signatures of Nonstandard Neutrino Properties in Collapsing Stellar Cores | arXiv:2412.02750v2 Announce Type: replace Abstract: We present a novel multi-messenger approach for probing nonstandard neutrino properties through the detection of gravitational waves (GWs) from collapsing stellar cores and associated supernova explosions. We show that neutrino flavor conversion inside the proto-neutr... | https://arxiv.org/abs/2412.02750 | Academic Papers | svg |
c0144becc6f8f975c92549c080fdde1dcc43bb8296ac5219785d8d3b0496ffc2 | 2026-01-16T00:00:00-05:00 | Probing the Limits of Habitability: A Catalog of Rocky Exoplanets in the Habitable Zone | arXiv:2501.14054v2 Announce Type: replace Abstract: While most of the 6000 discovered exoplanets are highly unlike the Earth, the first rocky worlds in the Habitable Zone (HZ) provide intriguing targets for the search for life in the cosmos. As detections increase, it is critical to test the empirical HZ as well as its... | https://arxiv.org/abs/2501.14054 | Academic Papers | svg |
913de786bd929dffb5f3893c1abb15e4832d430e9393f56190a198a3e2ad39ef | 2026-01-16T00:00:00-05:00 | Detectability of dark matter subhalo impacts in Milky Way stellar streams | arXiv:2502.07781v3 Announce Type: replace Abstract: Stellar streams are a promising way to probe the gravitational effects of low-mass dark matter (DM) subhalos. In recent years, there has been a remarkable explosion in the number of stellar streams detected in the Milky Way, and hundreds more may be discovered with fu... | https://arxiv.org/abs/2502.07781 | Academic Papers | svg |
55e13fb1881e5cdc9314520a1a512a200039de7ed189c2de21434fcf3ffc3c13 | 2026-01-16T00:00:00-05:00 | Rates of Strongly Lensed Tidal Disruption Events | arXiv:2502.19495v2 Announce Type: replace Abstract: In the coming years, surveys such as the Rubin Observatory's Legacy Survey of Space and Time (LSST) are expected to increase the number of observed Tidal Disruption Events (TDEs) substantially. We employ Monte Carlo integration to calculate the unlensed and lensed TDE... | https://arxiv.org/abs/2502.19495 | Academic Papers | svg |
5dceec5caa6eb7e34caa0afe74cde74b3fa2f72b4d50655ff7cf6c097aa3a8cd | 2026-01-16T00:00:00-05:00 | The galaxy-environment connection revealed by constrained simulations | arXiv:2503.14732v2 Announce Type: replace Abstract: The evolution of galaxies is known to be connected to their position within the large-scale structure and their local environmental density. We investigate the relative importance of these using the underlying dark matter density field extracted from the Constrained S... | https://arxiv.org/abs/2503.14732 | Academic Papers | svg |
1f5dc72ae608b050c1906345207b4b321e1702b572f86625e9c2b9c7fe1f52ae | 2026-01-16T00:00:00-05:00 | Chemical Abundances in the Metal-Poor Globular Cluster ESO 280-SC06: A Formerly Massive, Tidally Disrupted Globular Cluster | arXiv:2506.15664v3 Announce Type: replace Abstract: We present the first high-resolution abundance study of ESO 280-SC06, one of the least luminous and most metal-poor gravitationally bound Milky Way globular clusters. Using Magellan/MIKE spectroscopy for ten stars, we confirm the cluster's low metallicity as [Fe/H] = ... | https://arxiv.org/abs/2506.15664 | Academic Papers | svg |
e4ba9f668f3f0abe9a738c0fcfa2802e27ac2b4c42990ff89122a9dc81f87ebc | 2026-01-16T00:00:00-05:00 | Non-Gaussian statistics in galaxy weak lensing: compressed three-point correlations and cosmological forecasts | arXiv:2506.19811v3 Announce Type: replace Abstract: Building on previous developments of a harmonic decomposition framework for computing the three-point correlation function (3PCF) of projected scalar fields over the sky, this work investigates how much cosmological information is contained in these higher-order stati... | https://arxiv.org/abs/2506.19811 | Academic Papers | svg |
1a8bc024a1dbff1d572890c8587ca75adebee89eadb4bcdaffd8750ec6ac2ed9 | 2026-01-16T00:00:00-05:00 | Angular-momentum pairs in spherical systems: applications to the Galactic centre | arXiv:2507.10551v2 Announce Type: replace Abstract: Consider a system of point masses in a spherical potential. In such systems objects execute planar orbits covering two-dimensional rings or annuli, represented by the angular-momentum vectors, which slowly reorient due to the persistent weak gravitational interaction ... | https://arxiv.org/abs/2507.10551 | Academic Papers | svg |
5058196929b8f8d72939b4fd4b514c8950e01126da5971d0e58270368421fc06 | 2026-01-16T00:00:00-05:00 | A Nitrogen-rich AGN Powering a Large Ionizing Bubble at z=8.63 | arXiv:2508.01372v2 Announce Type: replace Abstract: We report the detection of Ly${\alpha}$ in CANUCS-LRD-z8.6, a recently discovered AGN at z = 8.63 by Tripodi et al. (2024), in new NIRSpec/MSA G140H/F070LP observations. We detect broad Ly${\alpha}$ emission (FWHM $= 1540 \pm 260$ km/s) near the systemic velocity, whi... | https://arxiv.org/abs/2508.01372 | Academic Papers | svg |
b76e74caec42febb0b9372f5c0368f095cc11da74f5ac84e1ab86642d56a4f46 | 2026-01-16T00:00:00-05:00 | Cosmological Constraints on Neutrino Masses in a Second-Order CPL Dark Energy Model | arXiv:2508.16238v2 Announce Type: replace Abstract: Recent DESI results indicate a strong preference for dynamical dark energy (DE) when baryon acoustic oscillation (BAO) measurements are combined with supernovae (SNe) and cosmic microwave background (CMB) data using the Chevallier-Polarski-Linder (CPL) parameterizatio... | https://arxiv.org/abs/2508.16238 | Academic Papers | svg |
03afbdd6bdddde6ab961fb0d31dbd83184d2242efa0179d450ee589a0b8c8c76 | 2026-01-16T00:00:00-05:00 | Topology of the Superconducting Heart of Neutron Stars: Effects of Microphysics and Gravitational-Wave Signatures | arXiv:2508.18363v2 Announce Type: replace Abstract: We present a general-relativistic study of the distribution of proton superconductivity in strongly magnetized neutron stars (NSs), using the XNS code to solve the coupled Einstein-Maxwell equations. We investigate equilibrium configurations with both toroidal and pol... | https://arxiv.org/abs/2508.18363 | Academic Papers | svg |
cc09d9451551328063b2ed7decb8268c72988f7a7b9985990f8b802a62b5e543 | 2026-01-16T00:00:00-05:00 | HSTPROMO Internal Proper Motion Kinematics of Dwarf Spheroidal Galaxies: II. Velocity Anisotropy and Dark Matter Cusp Slope of Sculptor | arXiv:2508.20711v2 Announce Type: replace Abstract: We analyze three epochs of HST imaging over 20 years for the Sculptor dwarf spheroidal galaxy, measuring precise proper motions for 119 stars and combining them with 1760 existing line-of-sight velocities. This catalog yields the first radially-resolved 3D velocity di... | https://arxiv.org/abs/2508.20711 | Academic Papers | svg |
32cd8ff01c50704a8702be185391c2c107163f622a29ec71c4753c4153af353b | 2026-01-16T00:00:00-05:00 | Prospects and Limitations of PTAs Anisotropy Searches -- The Frequentist Case | arXiv:2509.07074v2 Announce Type: replace Abstract: Recent findings from several Pulsar Timing Array (PTA) collaborations point to the existence of a Gravitational Wave Background (GWB) at nanohertz frequencies. A key next step towards characterizing this signal and identifying its origin is to map the sky distribution... | https://arxiv.org/abs/2509.07074 | Academic Papers | svg |
8f6a8aba9b943d47ded7dec53e698cd17ae3aefe2141f8fc1a3a1f4528ab673d | 2026-01-16T00:00:00-05:00 | BlackTHUNDER: Shedding light on a dormant and extreme little red dot at z=8.50 | arXiv:2509.20455v2 Announce Type: replace Abstract: Recent photometric surveys with JWST have revealed a significant population of mysterious objects with red colours, compact morphologies, frequent signs of active galactic nucleus (AGN) activity, and negligible X-ray emission. These 'Little Red Dots' (LRDs) have been ... | https://arxiv.org/abs/2509.20455 | Academic Papers | svg |
99f5bd6c90cc422e4acbd1214a6a49a3d2aa0d79a3970286ecd4f8fc58561313 | 2026-01-16T00:00:00-05:00 | Probing the Star Formation Main Sequence down to 10$^{7} M_\odot$ at $1 < z < 9$ | arXiv:2509.22871v2 Announce Type: replace Abstract: The Main Sequence of Star-Forming Galaxies (SFGMS or MS) is a fundamental scaling relation that provides a global framework for studying galaxy formation and evolution, as well as insight into the complex star formation histories (SFHs) of individual galaxies. In this... | https://arxiv.org/abs/2509.22871 | Academic Papers | svg |
decaf710edbf9b8b9db12c35ec3bd4b1091bab458ec6f365a6e79c061a686b39 | 2026-01-16T00:00:00-05:00 | Faraday Depolarization Study of a Radio Galaxy Using LOFAR Two-metre Sky Survey: Data Release 2 | arXiv:2510.00440v2 Announce Type: replace Abstract: We present a detailed depolarization analysis of the radio galaxy \texttt{ILTJ012215.21+254334.8} using polarimetric data from the \textit{LOFAR Two-metre Sky Survey} (LoTSS) Data Release 2 (DR2) catalogue. This source, with \textit{RM} $\sim$ 47 rad m$^{-2}$ and proj... | https://arxiv.org/abs/2510.00440 | Academic Papers | svg |
b09ebd0521722c170956be9912782ecc8f5a2733a02e90e33b0ab6e2dd0ade92 | 2026-01-16T00:00:00-05:00 | Next-Generation Improvements in Giant Exoplanet Evolutionary and Structural Models | arXiv:2510.08681v2 Announce Type: replace Abstract: Many evolutionary models of giant exoplanets still rely on simplifying assumptions that are no longer adequate given detailed constraints from Jupiter, Saturn, and modern exoplanet observations. Here, we identify the key physical improvements required for next-generat... | https://arxiv.org/abs/2510.08681 | Academic Papers | svg |
958307c8d9ee78feeb0f2c1ebbdbcf907f9477eaae7179d5ec60055cf1c62e80 | 2026-01-16T00:00:00-05:00 | The GAPS programme at TNG LXXI. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452) | arXiv:2510.11490v3 Announce Type: replace Abstract: Sub-Neptunes with planetary radii of $R_{p} \simeq 2-4 R_{\oplus}$ are the most common planets around solar-type stars in short-period ($P<100$ d) orbits. It is still unclear, however, what their most likely composition is, that is whether they are predominantly gas d... | https://arxiv.org/abs/2510.11490 | Academic Papers | svg |
8ff173a130aa7b2c1d8a445d17f806ec7cf63a9ba3780affb6fc9f0b47d08f2a | 2026-01-16T00:00:00-05:00 | Classical Cepheids in the Galactic thin disk I. Abundance gradients via non-local thermodynamic equilibrium spectral analysis | arXiv:2511.22491v2 Announce Type: replace Abstract: Classical Cepheids (CCs) have long been considered excellent tracers of the chemical evolution of the Milky Way's young disk. We present a homogeneous, NLTE spectroscopic analysis of 401 Galactic CCs, based on 1,351 high-resolution optical spectra, spanning Galactocen... | https://arxiv.org/abs/2511.22491 | Academic Papers | svg |
5d7aa3685ed8351482ef07f322f30149424ab03d981ba09c4c9c6649265cd70d | 2026-01-16T00:00:00-05:00 | Abundance of cosmic voids in EFT of dark energy | arXiv:2512.20171v2 Announce Type: replace Abstract: Cosmic voids in the large-scale structure are among the useful probes for testing gravity on cosmological scales. In this paper, we investigate the evolution of voids in the Horndeski theory using the effective field theory (EFT) of dark energy. Modeling the void form... | https://arxiv.org/abs/2512.20171 | Academic Papers | svg |
640e5702858eec123dcfec67672827237859f21209ec6ed8ddb4873280a2d7f1 | 2026-01-16T00:00:00-05:00 | Testing supermassive primordial black holes with lensing signals of binary black hole merges | arXiv:2601.01034v2 Announce Type: replace Abstract: Next-generation ground-based gravitational wave (GW) detectors are expected to observe millions of binary black hole mergers, a fraction of which will be strongly lensed by intervening galaxies or clusters, producing multiple images with characteristic distribution of... | https://arxiv.org/abs/2601.01034 | Academic Papers | svg |
6f26aed1253f72482632d7f1ea4daccd07867e00c12f6d2ccf32af9aebbefa61 | 2026-01-16T00:00:00-05:00 | Late-Time Infrared Cooling in Magnetar-Driven Supernovae | arXiv:2601.03373v2 Announce Type: replace Abstract: A central magnetar engine is commonly invoked to explain energetic supernovae, which should have multiple signals in multiwavelength emission. Photoionization from the pulsar wind nebula (PWN) can create distinct spectroscopic signals in the nebular phase. Recent mode... | https://arxiv.org/abs/2601.03373 | Academic Papers | svg |
e954c4bf564101fe8161b3865e3cbeefca36febfd27fbeedbb8072fb4e34a33c | 2026-01-16T00:00:00-05:00 | An eclipsing 8.56 minute orbital period mass-transferring binary | arXiv:2601.07925v2 Announce Type: replace Abstract: We report the discovery of ATLAS J101342.5-451646.8 (hereafter ATLAS J1013-4516), an eclipsing, mass-transferring AM Canum Venaticorum binary with an 8.56-minute orbital period, identified via periodic variability in light curves from the Asteroid Terrestrial-impact L... | https://arxiv.org/abs/2601.07925 | Academic Papers | svg |
b54e12045bf046b6dc42c0c774a9e94a5852d5d994b33f33affd29b3adc24215 | 2026-01-16T00:00:00-05:00 | Upper limits on microhertz gravitational waves from supermassive black-hole binaries using PSR J1909-3744 data from the second IPTA data release | arXiv:2601.09054v2 Announce Type: replace Abstract: We present the results of a search for gravitational waves (GWs) from individual sources using high-cadence observations of PSR J1909\(-\)3744 obtained during an intensive observing campaign with the International Pulsar Timing Array second data release (IPTA-DR2) bet... | https://arxiv.org/abs/2601.09054 | Academic Papers | svg |
5868924efb0b41a33536cc833ec63fb27623d885187aa74e0390184c9a8c25c1 | 2026-01-16T00:00:00-05:00 | Probing Spin-2 Ultralight Dark Matter with Space-based Gravitational Wave Detectors in the mHz Regime | arXiv:2501.11071v2 Announce Type: replace-cross Abstract: Spin-2 ultralight dark matter (ULDM) is a viable dark matter candidate and it can be constrained using gravitational wave (GW) observations. In this paper, we investigate the detectability of spin-2 ULDM by space-based GW interferometers. By considering a direct... | https://arxiv.org/abs/2501.11071 | Academic Papers | svg |
0af508bec7ce26fa4c73e6d2acf0bb22ab9f2995048760d2f25a5755ac158b3d | 2026-01-16T00:00:00-05:00 | Non-perturbative determination of the sphaleron rate for first-order phase transitions | arXiv:2506.04939v2 Announce Type: replace-cross Abstract: In many extensions of the Standard Model electroweak phase transitions at high temperatures can be described in a minimal dimensionally reduced effective theory with SU(2) gauge field and fundamental Higgs scalar. In this effective theory, all thermodynamic info... | https://arxiv.org/abs/2506.04939 | Academic Papers | svg |
890fca951e9aca4e7cc1565724437d8a8f7d9614e76daeaf9768306a5dc44cd5 | 2026-01-16T00:00:00-05:00 | Superconducting Ring Resonators: Modelling, Simulation, and Experimental Characterisation | arXiv:2506.23811v2 Announce Type: replace-cross Abstract: We present a theoretical and experimental study of superconducting ring resonators as an initial step toward their implementation in superconducting electronics and quantum technologies, with promising applications including superconducting parametric amplifiers... | https://arxiv.org/abs/2506.23811 | Academic Papers | svg |
1a8431a88a2c2804aa3abb5c9351a821b4e3bff13080520df071902cd5d81f62 | 2026-01-16T00:00:00-05:00 | $\mathbb Z_2$-Stable Dark Matter via Broken $\text{SU}(5)$ Gauge Bosons | arXiv:2511.19462v4 Announce Type: replace-cross Abstract: I construct and analyze a dark matter sector that is neutral under the unbroken Standard Model gauge group and couples only to the broken $\text{SU}(5)$ gauge directions, the leptoquark vectors $X,Y$. An exact $\mathbb Z_2$ renders the dark matter stable. I give... | https://arxiv.org/abs/2511.19462 | Academic Papers | svg |
14686da31515b74d2a8c8a19eb009403d689a73f83495fe9a112cc20a3d3f6e1 | 2026-01-16T00:00:00-05:00 | An Excited Dark Matter Solution to the MeV Galactic Center Excesses | arXiv:2512.13797v2 Announce Type: replace-cross Abstract: Recent COMPTEL data analysis reveals a $\sim$ 2 MeV continuum excess whose spatial distribution closely matches the long-standing 511 keV line observed by INTEGRAL/SPI, indicating a common population of low-energy positrons that is difficult to reconcile with kn... | https://arxiv.org/abs/2512.13797 | Academic Papers | svg |
def1840b8639c062c591d1c436441562125de23490a0de6364c84af319aa998a | 2026-01-16T00:00:00-05:00 | Towards a unified quantum field theory of dark energy and inflation: unstable de Sitter vacuum and running vacuum | arXiv:2601.05218v2 Announce Type: replace-cross Abstract: Inflation is a necessary cosmic mechanism to cure basic inconsistencies of the standard model of cosmology. These problems are usually `fixed' by postulating the existence of a scalar field (called the ``inflaton''). However, other less ad hoc options are possib... | https://arxiv.org/abs/2601.05218 | Academic Papers | svg |
b999ab9d44afb49c20d77d0ac96c02cceb51bd199219cd5f09e184438cfd130b | 2026-01-16T00:00:00-05:00 | The behavioral effects of index insurance in fisheries | arXiv:2601.09914v1 Announce Type: new Abstract: Fisheries are vulnerable to environmental shocks that impact stock health and fisher income. Index insurance is a promising financial tool to protect fishers from environmental risk. However, insurance may change fisher's behavior. It is imperative to understand the direc... | https://arxiv.org/abs/2601.09914 | Academic Papers | svg |
08f44732507f2028666d16d3b20a7fc101dcd1226fa1d3e3293cc1007cfa9887 | 2026-01-16T00:00:00-05:00 | Corrected Forecast Combinations | arXiv:2601.09999v1 Announce Type: new Abstract: This paper proposes corrected forecast combinations when the original combined forecast errors are serially dependent. Motivated by the classic Bates and Granger (1969) example, we show that combined forecast errors can be strongly autocorrelated and that a simple correct... | https://arxiv.org/abs/2601.09999 | Academic Papers | svg |
9da53dcf25b91bbfb83cc076a1b05e2408c2de684f9cc84253c6a29afc25a1cb | 2026-01-16T00:00:00-05:00 | Multi-Sender Disclosure with Costs | arXiv:2601.10048v1 Announce Type: new Abstract: We study voluntary disclosure with multiple biased senders who may bear costs for disclosing or concealing their private information. Under relevant assumptions, disclosures are strategic substitutes under a disclosure cost but complements under a concealment cost. Additi... | https://arxiv.org/abs/2601.10048 | Academic Papers | svg |
3218571fd0f53bf61edecf888289240151b60d7babd5c590193bbc4a98514e06 | 2026-01-16T00:00:00-05:00 | Power and Control in Complex Networks: A Taxonomy and Critical Review | arXiv:2601.10218v1 Announce Type: new Abstract: This paper reviews the main network analysis methods used to measure structural power, which refers to the ability to shape outcomes through network position and influence, and the ability to affect others through network connections. These approaches have been applied in... | https://arxiv.org/abs/2601.10218 | Academic Papers | svg |
004fb332a73f0f96b842ee661fd37dc22cd839aa462d6afe54d505ca6cbdbb57 | 2026-01-16T00:00:00-05:00 | Selecting and Testing Asset Pricing Models: A Stepwise Approach | arXiv:2601.10279v1 Announce Type: new Abstract: The asset pricing literature emphasizes factor models that minimize pricing errors but overlooks unselected candidate factors that could enhance the performance of test assets. This paper proposes a framework for factor model selection and testing by (i) selecting the opt... | https://arxiv.org/abs/2601.10279 | Academic Papers | svg |
0c4f4769c43fb34bdd7bdf774598dc424da58818e07f614bedd73402fbe88259 | 2026-01-16T00:00:00-05:00 | Como medir o invis\'ivel? Guerras, pizzarias do Pent\'agono e o uso de vari\'aveis proxy em econometria | arXiv:2601.10352v1 Announce Type: new Abstract: Many economically relevant variables (risk, confidence, uncertainty) are latent and therefore not directly observable, which creates identification challenges in applied regressions. This text formalizes how omitting latent factors generates omitted-variable bias and disc... | https://arxiv.org/abs/2601.10352 | Academic Papers | svg |
b9a88e10651df6f40debb218de1b1223ebe5ae560774163ac6c3623de131062d | 2026-01-16T00:00:00-05:00 | Chasing Opportunity: Spillovers and Drivers of U.S. State Population Growth | arXiv:2601.10444v1 Announce Type: new Abstract: We study the drivers and spatial diffusion of U.S. state population growth using a dynamic spatial model for 49 states, 1965-2017. Methodologically, we recover the spatial network structure from the data, rather than imposing it a priori via contiguity or distance, and co... | https://arxiv.org/abs/2601.10444 | Academic Papers | svg |
33b008c7be3c8658f3c411723267cd49c093b012c4db20b6c215b9d1ad2ce44e | 2026-01-16T00:00:00-05:00 | Semiparametric inference for inequality measures under nonignorable nonresponse using callback data | arXiv:2601.10501v1 Announce Type: new Abstract: This paper develops semiparametric methods for estimation and inference of widely used inequality measures when survey data are subject to nonignorable nonresponse, a challenging setting in which response probabilities depend on the unobserved outcomes. Such nonresponse m... | https://arxiv.org/abs/2601.10501 | Academic Papers | svg |
67bae5f2269a08a68178c404d42dd634ddce030ab0b8214c45746e96a02a3351 | 2026-01-16T00:00:00-05:00 | causalfe: Causal Forests with Fixed Effects in Python | arXiv:2601.10555v1 Announce Type: new Abstract: The causalfe package provides a Python implementation of Causal Forests with Fixed Effects (CFFE) for estimating heterogeneous treatment effects in panel data settings. Standard causal forest methods struggle with panel data because unit and time fixed effects induce spur... | https://arxiv.org/abs/2601.10555 | Academic Papers | svg |
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