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7fe2cad0607e6a71d3913bab985d453b61e23b1bacfe11831104c97dae50399f | 2026-01-01T00:00:00-05:00 | Antarctic TianMu Staring Observation Project I: Overview and Implementation of the Prototype Telescope | arXiv:2512.24067v1 Announce Type: new Abstract: Wide-field rapid sky surveys serve as critical observational methods for time-domain astronomical research. The Antarctic region, with several months of continuous dark nights annually, is an ideal site for time-domain astronomical observations. The Antarctic TianMu Stari... | https://arxiv.org/abs/2512.24067 | Academic Papers | svg |
15c520a9560c539326e1ed7eae8489ea9e7951624ae364abc7f300a200c5798d | 2026-01-01T00:00:00-05:00 | Antarctic TianMu Staring Observation Project II: Data reduction and preliminary results | arXiv:2512.24068v1 Announce Type: new Abstract: The Antarctic TianMu Staring Observation Program is a time-domain optical sky survey project carried out in Antarctica, capable of large sky coverage, high-cadence sampling, and long-period staring. It utilizes the exceptional observing conditions in Antarctica to conduct... | https://arxiv.org/abs/2512.24068 | Academic Papers | svg |
1a569759ff4a21e857ccf7f39f9fced2398c384168641935915b4914d627a58a | 2026-01-01T00:00:00-05:00 | SSC Radiation in the ICMART Model: Spectral Simulations and Application to the Record-Breaking GRB 221009A | arXiv:2512.24085v1 Announce Type: new Abstract: This paper presents simulations of the synchrotron self-Compton (SSC) spectrum within the Internal-Collision-induced Magnetic Reconnection and Turbulence (ICMART) model. We investigate how key parameters like the magnetization $\sigma_0$ shape the broadband spectral energ... | https://arxiv.org/abs/2512.24085 | Academic Papers | svg |
26c97aaf01172bd8d1b4098e7b3c30aecf0de9e3788bc8583d78891fd5bcfb43 | 2026-01-01T00:00:00-05:00 | photoD with Rubin's Data Preview 1: first stellar photometric distances and deficit of faint blue stars. Stellar distances with Rubin's DP1 | arXiv:2512.24109v1 Announce Type: new Abstract: Aims: We investigate the utility of Rubin's Data Preview 1 for estimating stellar number density profile in the Milky Way halo. Methods: Stellar broad-band near-UV to near-IR $ugrizy$ photometry released in Rubin's Data Preview 1 is used to estimate distance and metallici... | https://arxiv.org/abs/2512.24109 | Academic Papers | svg |
34373ebfce3de00e455f31830c573399ab52358999612ef7e2cdfdc711bce709 | 2026-01-01T00:00:00-05:00 | Evolution of Accretion Properties in Mrk 1040 using long-term X-ray Observations | arXiv:2512.24141v1 Announce Type: new Abstract: We present a comprehensive long-term, multi-epoch spectral and timing study of the Seyfert 1 Active Galactic Nucleus (AGN) Mrk~1040, utilizing X-ray observations spanning from 2009 to 2024 ($\sim$15 years). The source exhibits pronounced spectral and temporal variability,... | https://arxiv.org/abs/2512.24141 | Academic Papers | svg |
d0a1fac10160f0539ea8d65af676a961a08a7d6fcd1c5802712df1fc3ba19943 | 2026-01-01T00:00:00-05:00 | A Seyfert galaxy as a hidden counterpart to a neutrino-associated blazar | arXiv:2512.24178v1 Announce Type: new Abstract: The origin and production mechanisms of high-energy astrophysical neutrinos remain open questions in multimessenger astronomy. Previous studies have hinted at a possible linear correlation between the hard X-ray and high-energy neutrino emission in active galactic nuclei.... | https://arxiv.org/abs/2512.24178 | Academic Papers | svg |
f277165b62fd5fd0e67d1e2de4a860aa2ccaa052265f40378c70b0f8f16a5b46 | 2026-01-01T00:00:00-05:00 | Tidally Trapped Two-pole Pulsations Discovered in a Close Binary with a Massive $\beta$ Cephei Star | arXiv:2512.24185v1 Announce Type: new Abstract: Tidally tilted pulsators (TTPs), whose pulsation axis aligns with the binary's semi-major axis, represent a newly established class of oscillators in binary systems. While all previously known TTPs are either $\delta$ Scuti or subdwarf B-type stars, their existence has re... | https://arxiv.org/abs/2512.24185 | Academic Papers | svg |
bf2c52a53649f367d92014895a45055460e0cee7f6c0557d275907599506a96e | 2026-01-01T00:00:00-05:00 | Connecting disc-corona physics and ionised outflows in AGN in the 2040s | arXiv:2512.24187v1 Announce Type: new Abstract: We outline a science case for next-generation wide-field spectroscopic surveys aimed at connecting the physics of the accretion disc and X-ray corona in active galactic nuclei (AGN) with the properties of their nebular regions and circumgalactic medium (CGM). We focus on ... | https://arxiv.org/abs/2512.24187 | Academic Papers | svg |
6c7d9f4a63bd5d407e46a6dea3dcd72c755b427a3e6de2468885e02e81e2c020 | 2026-01-01T00:00:00-05:00 | Abundance Stratification in Type Iax SN 2020rea with TARDIS | arXiv:2512.24203v1 Announce Type: new Abstract: Using the 1D Monte Carlo-based radiative transfer code TARDIS, we investigate the spectral evolution of the Type Iax supernova (SN) 2020rea from -7 days before to +21 days after maximum light. Our best-fit models indicate stratified, velocity-dependent abundances at early... | https://arxiv.org/abs/2512.24203 | Academic Papers | svg |
3df8a56f1a17ed704f95af5887551254f28df0918e1a12fdc5adadb0e30fc284 | 2026-01-01T00:00:00-05:00 | H.E.S.S. detection and multi-wavelength study of the $z \sim$ 1 blazar PKS 0346$-$27 | arXiv:2512.24228v1 Announce Type: new Abstract: PKS 0346-27 is a Low Synchrotron Peaked (LSP) blazar at redshift 0.991. The very-high-energy (VHE, E > 100 GeV) spectra of blazars are always affected by $\gamma\gamma$ absorption by the Extragalactic Background Light (EBL) and subsequently, no blazars have been detected ... | https://arxiv.org/abs/2512.24228 | Academic Papers | svg |
ab5c78590b08642364a944d3f8b5149aeb25a4b0273612e519a135c0be81d566 | 2026-01-01T00:00:00-05:00 | Improved lanthanide constraints for the kilonova AT 2017gfo | arXiv:2512.24257v1 Announce Type: new Abstract: Spectroscopic observations of the kilonova AT 2017gfo provide a unique opportunity to identify signatures from individual heavy elements freshly synthesised via the {\it r}-process, the nucleosynthetic channel responsible for producing $\sim$half of all trans-iron-group e... | https://arxiv.org/abs/2512.24257 | Academic Papers | svg |
fc05af9bdc56876ac09b506f44c6d221ab0c171404915bc28b63bdf213c2847c | 2026-01-01T00:00:00-05:00 | From Nbody1 to Nbody7: the Growth of Sverres Industry | arXiv:2512.24299v1 Announce Type: new Abstract: From NBODY1 to NBODY6 : The Growth of an Industry is the title of a 1999 invited review by Sverre Aarseth, for Publications of the Astronomical Society of the Pacific (PASP). I took this as an inspiration for the title of this paper; it describes how Sverres NBODY Industr... | https://arxiv.org/abs/2512.24299 | Academic Papers | svg |
1f9fb402e47b56b75d88f74665fb453ddb65ddeeab644144d0809ca3f0cba51a | 2026-01-01T00:00:00-05:00 | $S_8-H_0$ tension in a SI-ULDM scenario | arXiv:2512.24309v1 Announce Type: new Abstract: We study the cosmological impact of a transient self-interaction phase in Ultra-Light Dark Matter (ULDM), focusing on its simultaneous effects on the sound horizon and the late-time growth of structure. In the presence of a quartic self-interaction, the scalar field under... | https://arxiv.org/abs/2512.24309 | Academic Papers | svg |
c8ad5ecd6409652ba7ebcd22d2654bc29b466b3ab9c5d403b5887aa59ca48c1d | 2026-01-01T00:00:00-05:00 | The Likelihood of Hosting Undetected Brown Dwarfs in the Solar Vicinity | arXiv:2512.24319v1 Announce Type: new Abstract: Based on the spatial distribution of objects in the solar neighbourhood with a radius of 20 parsecs, and after correcting for the incompleteness of observational data, an expression was obtained for estimating the probability of finding an object at a given distance from ... | https://arxiv.org/abs/2512.24319 | Academic Papers | svg |
2b7fdf03bdd2bc088c35b161f760574170b9b7c4c1094e31862b66118b037654 | 2026-01-01T00:00:00-05:00 | Self-Gravitating Scalar Field Configurations, Ultra Light Dark Matter and Galactic Scale Observations | arXiv:2512.24350v1 Announce Type: new Abstract: In this thesis, we investigate the possibility that dark matter consists of ultra light spin-zero particles with mass $m \sim 10^{-22}\ \text{eV}$. We focus on the role of self-interactions, assuming all other non-gravitational couplings to Standard Model particles are ne... | https://arxiv.org/abs/2512.24350 | Academic Papers | svg |
dec79eb9a10fb466026cf9425a835614f5915379293353e7578e51c685badfa2 | 2026-01-01T00:00:00-05:00 | Integrated Sachs-Wolfe maps from the Gower Street $w$CDM simulations | arXiv:2512.24369v1 Announce Type: new Abstract: The late-time linear Integrated Sachs-Wolfe (ISW) effect directly probes the dynamics of cosmic acceleration and the nature of dark energy. Detecting these weak, secondary temperature anisotropy signals of the CMB requires accurate theoretical predictions of their amplitu... | https://arxiv.org/abs/2512.24369 | Academic Papers | svg |
f7565b4cbb8f46e742bbf28542f21577cf49c95e9aa2aecd704db59251869368 | 2026-01-01T00:00:00-05:00 | A millimeter methanol maser ring tracing the deceleration of the heat wave powered by the massive protostellar accretion outburst in G358.93-0.03 MM1 | arXiv:2512.24380v1 Announce Type: new Abstract: We present multi-epoch, multi-band ALMA imaging of the new Class II millimeter methanol masers excited during the accretion outburst of the massive protostar G358.93-0.03 MM1. The highest angular resolution image (24 mas $\approx$ 160 au) reveals a nearly complete, circul... | https://arxiv.org/abs/2512.24380 | Academic Papers | svg |
2002f65e13d07595f1f1e24198f33be6264305fa227813c46b4ce9834f84d20f | 2026-01-01T00:00:00-05:00 | A closer look at the young stellar group around Sh 2-295 | arXiv:2512.24388v1 Announce Type: new Abstract: Star formation is governed by multiple physical processes, making it inherently complicated. One excellent example is the Canis Major OB1/R1 Association, whose complex history of star formation is related to different episodes. Three supernova (SN) events potentially alte... | https://arxiv.org/abs/2512.24388 | Academic Papers | svg |
dd274e5c782b739ee35a9b95cae415d7d903afc7397ba8937fe7902511dbb484 | 2026-01-01T00:00:00-05:00 | OmniCosmos: Transferring Particle Physics Knowledge Across the Cosmos | arXiv:2512.24422v1 Announce Type: new Abstract: Foundation models build an effective representations of data that can be deployed on diverse downstream tasks. Previous research developed the OmniLearned foundation model for collider physics and showed that it could significantly advance discovery potential across colli... | https://arxiv.org/abs/2512.24422 | Academic Papers | svg |
f7d87af3c19331bc84b58ad34d9e69eb19e1985208874879b7a0587480613837 | 2026-01-01T00:00:00-05:00 | A Convolutional Neural Network for the Recovery of Transfer Functions From Velocity-Resolved Reverberation Mapping Data | arXiv:2512.24433v1 Announce Type: new Abstract: One of the hallmarks of active galactic nuclei are that they are highly variable with time. In watching the spectra vary it has been observed that the emission-lines often appear to "reverberate" -- that is they vary in response to continuum variations assumed to originat... | https://arxiv.org/abs/2512.24433 | Academic Papers | svg |
0fbe139c61f1198a16ec0df535d89531db2fd52a86d529c823e8d42268fb753c | 2026-01-01T00:00:00-05:00 | Nine years of UVIT: assessing sensitivity variation | arXiv:2512.24475v1 Announce Type: new Abstract: The Ultra-Violet Imaging Telescope (UVIT) is one of the five payloads onboard the first Indian multiwavelength astronomical observatory, AstroSat, launched by the Indian Space Research Organisation on 28 September 2015. UVIT, designed for simultaneous imaging in the far-u... | https://arxiv.org/abs/2512.24475 | Academic Papers | svg |
bef480ad079baca27043b1ee3f609353754fabf82758660f9b06f055b8b7a023 | 2026-01-01T00:00:00-05:00 | Understanding Solar Flares and Energetic Events: Open questions, observational requirements, and instrumental needs over the coming decade | arXiv:2512.24479v1 Announce Type: new Abstract: Solar flares are the largest energy-release events in the Solar System, allowing us to study fundamental physical phenomena under extreme conditions. Those include magnetic reconnection, particle acceleration, radiation transport, and various plasma physics processes, all... | https://arxiv.org/abs/2512.24479 | Academic Papers | svg |
c327784dd1c65cf1a06670b9ea957dfac522c7f41b5ebaba9deef00b0bb6b002 | 2026-01-01T00:00:00-05:00 | 3D Radiative MHD Modeling of Particle Beam Heating of the Solar Atmosphere | arXiv:2512.24507v1 Announce Type: new Abstract: While solar flares are primarily associated with enhanced ultraviolet and X-ray emission, a subset of flares exhibit significant continuum brightening in visible light and are classified as white-light flares (WLFs). Despite extensive observational and modeling efforts, t... | https://arxiv.org/abs/2512.24507 | Academic Papers | svg |
818a80df670b2aaafe43b4604a0eab2811feb487750cb1180640daa26d817d10 | 2026-01-01T00:00:00-05:00 | The Redshifts from 122 Bands: Comparative Redshift Forecast for Low-Resolution Spectra from SPHEREx and 7-Dimensional Sky Survey (7DS) | arXiv:2512.24537v1 Announce Type: new Abstract: The recently initiated SPHEREx and 7DS surveys will deliver low-resolution spectra ($R\approx 30-130$) for hundreds of millions of galaxies over the optical to near-infrared range ($0.4-5.0\mu m$), covering a wide sky area without sample selection. These unique datasets w... | https://arxiv.org/abs/2512.24537 | Academic Papers | svg |
c68c6ac2ce45af6827020bd076f35f66893985b4561dfbdc58f142e71d670091 | 2026-01-01T00:00:00-05:00 | Seafloor Weathering and Stochastic Outgassing Unlikely to Significantly Shorten the Future Lifespan of Earth's Terrestrial Biosphere | arXiv:2512.24538v1 Announce Type: new Abstract: Current understanding suggests that as the Sun brightens in the far future, Earth's carbonate-silicate cycle will offset increasing temperatures by drawing CO$_2$ out of the atmosphere, ultimately leading to the extinction of all terrestrial plant life via either overheat... | https://arxiv.org/abs/2512.24538 | Academic Papers | svg |
d14a0dce0358bbda361f3ff6b06b0008a2412cfcb89c91518c2d576b08cf046a | 2026-01-01T00:00:00-05:00 | Evidence for the transition from thermal to non-thermal emission in the prompt emission of GRB 161117A | arXiv:2512.24563v1 Announce Type: new Abstract: GRB 161117A is a long-duration GRB with three main overlapping peaks. By analyzing the time-resolved spectra of its data observed with the Gamma-Ray Burst Monitor (GBM) on board the Fermi mission, we find that the spectral evolution shows a transition from thermal (single... | https://arxiv.org/abs/2512.24563 | Academic Papers | svg |
0263e9fb26328cecd7b6dbd6fc1073a7d28596bcaa670a7ab6e8d3442bc7d73c | 2026-01-01T00:00:00-05:00 | Inferring Solar Magnetic fields From the Polarization of the Mg II h and k Lines | arXiv:2512.24578v1 Announce Type: new Abstract: The polarization of the Mg II h and k lines holds significant diagnostic potential for measuring chromospheric magnetic fields, which are crucial for understanding the physical processes governing the energy transport and dissipation in the solar upper atmosphere, as well... | https://arxiv.org/abs/2512.24578 | Academic Papers | svg |
72b80ae07885a7ef4ac4bfb02c67c56144b8d4e5d805c888a417ba5104f2e2ce | 2026-01-01T00:00:00-05:00 | Dust destruction in bubbles driven by multiple supernovae explosions | arXiv:2512.24670v1 Announce Type: new Abstract: Dust lifetime derived from an isolated supernova (SN) evolution in the interstellar medium is known to be an order of magnitude shorter than the time needed to replenish dust mass by its production in various Galactic sources. We show, using 3-D numerical hydrodynamical s... | https://arxiv.org/abs/2512.24670 | Academic Papers | svg |
86897caa2bf7fcae34baeba66d687390991043e856385d20607bd036abebaa49 | 2026-01-01T00:00:00-05:00 | An Effective Theory for Biased Tracers via the Boltzmann-Equation Approach | arXiv:2512.24672v1 Announce Type: new Abstract: We develop an effective theory for biased tracers formulated at the level of the Boltzmann equation, providing a unified description of density and velocity bias. We introduce a general effective collision term in the tracer Boltzmann equation to encode tracer dynamics th... | https://arxiv.org/abs/2512.24672 | Academic Papers | svg |
25d4d17092e452e9827d86d3b766d15e0cf1677dc41a596921d899824440f6f1 | 2026-01-01T00:00:00-05:00 | Destruction of the interstellar dust by a supernova | arXiv:2512.24677v1 Announce Type: new Abstract: Destruction of the interstellar dust proceeds primary behind supernova shocks. The previous estimates of the mass of the interstellar dust destroyed in the SN remnant do not take into account the physical properties of the ambient medium. Here we consider how some paramet... | https://arxiv.org/abs/2512.24677 | Academic Papers | svg |
ff0aee8d5cf40f433e2a7863e42bada9be83148478b723f9033ccc964e167259 | 2026-01-01T00:00:00-05:00 | The role of PSR J0614-3329 in defining the high-density matter at Neutron star cores | arXiv:2512.24729v1 Announce Type: new Abstract: In this work, we investigate how astrophysical observations from NICER and GW data constrain the matter properties at high densities, with a primary focus on the recent PSR J0614-3329 data. We have constructed three distinct classes of an ensemble of agnostic equation of ... | https://arxiv.org/abs/2512.24729 | Academic Papers | svg |
f73e52e819ea1b6bb4a50fefca00d83fcc5d90920a37f38d85966d46fb1a2905 | 2026-01-01T00:00:00-05:00 | Coronal flux tube illuminated by strong shock spot: New Year's Eve solar eruption of 2023-Dec-31 | arXiv:2512.24749v1 Announce Type: new Abstract: Powerful solar eruptions are known to produce fast and wide shock waves in the solar corona and inner heliosphere. The relationship between the coronal shock waves, solar energetic particles and different types of radio emission is a subject of long-lasting research activ... | https://arxiv.org/abs/2512.24749 | Academic Papers | svg |
8345bf0adfde6e7ac7cc7a93adeb361f2aa23529d5213d405c52ff98341e8148 | 2026-01-01T00:00:00-05:00 | LUNCH: A Lightweight Unified Deep-Learning Framework for General Transients Classification in High-Energy Time-Domain Astronomy | arXiv:2512.24764v1 Announce Type: new Abstract: The increasing data volume of high-energy space monitors necessitates real-time, automated transient classification for multi-messenger follow-up. Conventional methods rely on empirical features like hardness ratios and reliable localization, which are not always precisel... | https://arxiv.org/abs/2512.24764 | Academic Papers | svg |
c5f3206a44330efab7b00d89cebd3a4049c8799e3278068a1287c0a3db262c91 | 2026-01-01T00:00:00-05:00 | TTC: Transformer-based TDE Classifier for the Wide Field Survey Telescope (WFST) | arXiv:2512.24782v1 Announce Type: new Abstract: We propose the Transformer-based Tidal disruption events (TDE) Classifier (\texttt{TTC}), specifically designed to operate effectively with both real-time alert streams and archival data of the Wide Field Survey Telescope (WFST). It aims to minimize the reliance on extern... | https://arxiv.org/abs/2512.24782 | Academic Papers | svg |
901658dc81eb4127de9bd3c63941a54cf85767452199e4ce0b23461cfb79e879 | 2026-01-01T00:00:00-05:00 | Scalable Stellar Parameter Inference Using Python-based LASP: From CPU Optimization to GPU Acceleration | arXiv:2512.24840v1 Announce Type: new Abstract: To enhance the efficiency, scalability, and cross-survey applicability of stellar parameter inference in large spectroscopic datasets, we present a modular, parallelized Python framework with automated error estimation, built on the LAMOST Atmospheric Parameter Pipeline (... | https://arxiv.org/abs/2512.24840 | Academic Papers | svg |
439c6b9e768c24a5e5e62f69efc32150c0f55293d7b061c6c85e7fc6149fce27 | 2026-01-01T00:00:00-05:00 | Resolving the Origins and Pathways of Ionizing Radiation Escape with UV Integral Field Spectroscopy | arXiv:2512.24895v1 Announce Type: new Abstract: The Epoch of Reionization marks the last major phase transition in the early Universe, during which the majority of neutral hydrogen once filling the intergalactic medium was ionized by the first galaxies. The James Webb Space Telescope (JWST) is now identifying promising... | https://arxiv.org/abs/2512.24895 | Academic Papers | svg |
d75b65497c7e82fbda9799dd0e1b6518e02e43bf19593b9e1d568afa92de4530 | 2026-01-01T00:00:00-05:00 | Cosmological dynamics and observational constraints of an interacting early scalar field coupled to radiation | arXiv:2512.24918v1 Announce Type: new Abstract: We study the cosmic evolution of an interacting scalar field radiation model, in which a minimally coupled scalar field exchanges energy with the radiation sector through an exponential coupling. Extending previous formulations, a non-relativistic matter component is incl... | https://arxiv.org/abs/2512.24918 | Academic Papers | svg |
e5fc47e59e717d8ea1719dafece056ef7a7bf4c147ba4a1b1e9062d272e6e7ff | 2026-01-01T00:00:00-05:00 | Discovery of a galaxy associated with the HI cloud FAST J0139+4328 | arXiv:2512.24924v1 Announce Type: new Abstract: The search for ``dark galaxies,'' a key prediction of the lambda cold dark matter, has yielded few viable candidates. Recently, FAST J0139+4328 was reported as the first isolated dark galaxy in the nearby universe, based on a neutral hydrogen (HI) detection and a non-dete... | https://arxiv.org/abs/2512.24924 | Academic Papers | svg |
fd01489ef156ff3b716ad3ac60253f77edc9aa0852f454c026e0f2a4aaee053c | 2026-01-01T00:00:00-05:00 | Searching for Periodicity in FRB 20240114A | arXiv:2512.24936v1 Announce Type: new Abstract: FRB 20240114A is extraordinarily active, and therefore presents an opportunity to search for the periodicity predicted by magnetar models of Fast Radio Bursts (FRB). Zhang, et al. (2025) observed 11,553 bursts, including 3196 on MJD 60381 (March 12, 2024). We find no sign... | https://arxiv.org/abs/2512.24936 | Academic Papers | svg |
27419794622b28063a86df34ea4783b5bf52d7a019bfe102d4194cad1fe434b2 | 2026-01-01T00:00:00-05:00 | Cosmic Himalayas in CROCODILE : Probing the Extreme Quasar Overdensities by Count-in-Cells analysis and Nearest Neighbor Distribution | arXiv:2512.24966v1 Announce Type: new Abstract: The recently reported Cosmic Himalayas (CH) -- an extreme quasar overdensity at z~2 -- poses an apparent challenge to the Lambda CDM framework, with a reported significance of 16.9-sigma under Gaussian assumptions. Such an event appears improbably rare, with a formal prob... | https://arxiv.org/abs/2512.24966 | Academic Papers | svg |
043cecca1c3e9589289d3e54ce45933a431ce49ff78c7edd98afa6ad30c0c655 | 2026-01-01T00:00:00-05:00 | Multi-Frequency Study of FRB20201124A with the uGMRT | arXiv:2512.24978v1 Announce Type: new Abstract: We present results from multi-epoch observations of the repeating fast radio burst FRB 20201124A with the upgraded Giant Metrewave Radio Telescope (uGMRT) during its active phase between 8 May and 28 May 2021. The bursts exhibit significant morphological diversity, includ... | https://arxiv.org/abs/2512.24978 | Academic Papers | svg |
e50038788db38a7b59deb59ffc7af99d7f240b2f5764dba606d3a9691f14ad1b | 2026-01-01T00:00:00-05:00 | Distributions of wide binary stars in theory and in Gaia data: III. Orbital momenta, masses, and manifestations of MOND | arXiv:2512.25002v1 Announce Type: new Abstract: Using the censored catalog of 103,169 resolved Gaia DR3 binary stars with accurate astrometric data for each component, a new observable, object-specific parameter is computed for each pair: the projected orbital momentum. This parameter is the product of four functions o... | https://arxiv.org/abs/2512.25002 | Academic Papers | svg |
9c6eec07865050261b8239f349b2ef6d6c4cdf05ed6aa954092bbc79cd9676bf | 2026-01-01T00:00:00-05:00 | Towards precision cosmology with Voids x CMB correlations (I): Roman-Agora mock catalogs and pipeline validation | arXiv:2512.25040v1 Announce Type: new Abstract: We construct and validate a set of multi-purpose mock galaxy catalogs designed to capture, to different degrees of accuracy, the main characteristics of the Nancy Grace Roman Space Telescope survey. These catalogs provide a foundation for void statistics and various CMB c... | https://arxiv.org/abs/2512.25040 | Academic Papers | svg |
7e55c661e3183c0f6e662aeb010002b0429b7c3eafd2ee2b259d56ba3019dd50 | 2026-01-01T00:00:00-05:00 | Feeling Blue: Constructing a Robust SALT3 UV Template and Constraining its Redshift Dependency | arXiv:2512.25064v1 Announce Type: new Abstract: Upcoming cosmological surveys will obtain numerous rest-frame ultraviolet (UV) observations of Type Ia supernovae (SNe Ia), yet there is concern about how standardizable SNe Ia are in the UV. In this work, we train a robust optical--UV SED model for SNe Ia (SALT3-UV) with... | https://arxiv.org/abs/2512.25064 | Academic Papers | svg |
7e5e86382600cdfc15483f7dcf05d8c6cc991f4841cda46136233b647d4d69ff | 2026-01-01T00:00:00-05:00 | Strongly Coupled Sectors in Inflation: Gapped Theories of Unparticles | arXiv:2512.23796v1 Announce Type: cross Abstract: We consider a novel scenario for a strongly coupled spectator sector during inflation, that of a higher dimensional conformal field theory with large anomalous dimensions -- ``unparticles" -- and compactify the extra dimensions. More specifically, we take generalized fr... | https://arxiv.org/abs/2512.23796 | Academic Papers | svg |
ee4ed1ea6e201a87ec365245bce3a3dbd5dcc862cfe0c8b5169070abdab39b11 | 2026-01-01T00:00:00-05:00 | Inflationary QCD phase diagram | arXiv:2512.24024v1 Announce Type: cross Abstract: Motivated by the cosmological collider program, which aims to probe high-energy physics through inflation, we investigate the phase diagram of multi-flavor QCD in de Sitter spacetime with a flavor-universal axial chemical potential induced by a rolling inflaton coupled ... | https://arxiv.org/abs/2512.24024 | Academic Papers | svg |
90c7ea08ee6982d5d61d2404a4aa42f5193f1b543974da47f395095e2225a24c | 2026-01-01T00:00:00-05:00 | Kinematic Anisotropies in PTA Observations: Analytical Toolkit | arXiv:2512.24055v1 Announce Type: cross Abstract: The reported evidence for an isotropic gravitational-wave background (GWB) from pulsar timing array (PTA) collaborations has motivated searches for extrinsic and intrinsic anisotropies. Kinematic anisotropies may arise as a consequence of a boosted observer moving with ... | https://arxiv.org/abs/2512.24055 | Academic Papers | svg |
a000b4b326c04dca3ecd350379a22b29349c72387ddf480b92b5b9a9384e74b9 | 2026-01-01T00:00:00-05:00 | Sommerfeld Enhancement from Background Force and the Galactic Center GeV Excess | arXiv:2512.24188v1 Announce Type: cross Abstract: We study the impact of background-induced forces on dark matter (DM) annihilation and their implications for indirect detection. In the presence of a finite number density of background particles, loop-level interactions can generate an effective force that is significa... | https://arxiv.org/abs/2512.24188 | Academic Papers | svg |
4656eaa03e0db8802f44ae481540e273dfe937be18bd890ded0e63d6f0187fa1 | 2026-01-01T00:00:00-05:00 | Impact of Anisotropy on Neutron Star Structure and Curvature | arXiv:2512.24194v1 Announce Type: cross Abstract: We investigate the impact of pressure anisotropy on the structural and geometric properties of neutron stars within general relativity, focusing primarily on the phenomenological Bowers-Liang (BL) model, and comparing selected results with a quasi-local prescription. Us... | https://arxiv.org/abs/2512.24194 | Academic Papers | svg |
b2cafeaca710a7e72220d049d30a16766d93b32fb2049e9827b4b9be8b1ac2d4 | 2026-01-01T00:00:00-05:00 | Big Bang Nucleosynthesis results refined via the Trojan Horse Method | arXiv:2512.24358v1 Announce Type: cross Abstract: This work presents the Trojan Horse Method (THM) as a powerful technique for measuring nuclear reaction cross sections at astrophysical energies. We then explore the impact of THM-derived reaction rates on the predictions of Standard Big Bang Nucleosynthesis (SBBN) usin... | https://arxiv.org/abs/2512.24358 | Academic Papers | svg |
bc34a181b2674ae8491d0bf9c29ac9edac8cdd357ea049136f138b38ee6f1fd3 | 2026-01-01T00:00:00-05:00 | Memories of Prof. George Lazarides | arXiv:2512.24481v1 Announce Type: cross Abstract: I present some memories of my Ph.D supervisor and, later, collaborator but always encouraging supporter Prof. G. Lazarides. Some of his contributions to our common and related scientific activities on the phenomenology of MSSM and inflation are also summarized. | https://arxiv.org/abs/2512.24481 | Academic Papers | svg |
bf1acf47f258f4c284b6eb322404de9eec58d12044ec31f35e1bdce46ced21f1 | 2026-01-01T00:00:00-05:00 | Higgs-like inflation in scalar-torsion $f(T,\phi)$ gravity in light of ACT-SPT-DESI constraints | arXiv:2512.24502v1 Announce Type: cross Abstract: We study Higgs-like inflation in the framework of scalar-torsion gravity, focusing on the general class of $f(T,\phi)$ theories in which gravitation is mediated by torsion rather than curvature. Motivated by the increasing precision of cosmic microwave background and la... | https://arxiv.org/abs/2512.24502 | Academic Papers | svg |
b91213947fc00566505b8c428fc184133eed57a8a03788f3953c65930988de13 | 2026-01-01T00:00:00-05:00 | Stellar modeling within regularized 4D Einstein-Gauss-Bonnet gravity in light of current astrophysical constraints | arXiv:2512.24554v1 Announce Type: cross Abstract: In this study we obtain interior solutions and investigate structural properties of isotropic compact stars in the framework of four-dimensional regularized Einstein-Gauss-Bonnet (4DEGB) gravity. For stellar matter content, we adopt a widely used quark-matter model that... | https://arxiv.org/abs/2512.24554 | Academic Papers | svg |
6c10530363ceeddeeb538e7d24325892157934b1f2852e5aefc2d0d2bfad61ec | 2026-01-01T00:00:00-05:00 | Aspects of Sommerfeld Enhancement in the light of Halo gamma-ray excess | arXiv:2512.24662v1 Announce Type: cross Abstract: We examine Sommerfeld enhancement in dark matter annihilation as a potential origin of the halo-like gamma-ray excess near $E_\gamma \simeq 20$ GeV reported by Totani. A minimal model with a light CP-even scalar mediator naturally produces a velocity-dependent annihilat... | https://arxiv.org/abs/2512.24662 | Academic Papers | svg |
e60de436f31e4ae2d430b4d07748b7b0c3c4d2948fd6ff68cd94c5af3ffeb4d2 | 2026-01-01T00:00:00-05:00 | Difference between quark stars and neutron stars in universal relations and their effect on gravitational waves | arXiv:2512.24703v1 Announce Type: cross Abstract: We calculate the $f$-mode frequency and tidal overlap of quark stars using the full general relativity method. We verify the universal relations obtained from conventional neutron stars in the case of quark stars and explore the cases with different values of parameters... | https://arxiv.org/abs/2512.24703 | Academic Papers | svg |
333dd048dcb4f4b330eaa5201230ff3ee4f2d60cf9c4c82dcf571862aac1397e | 2026-01-01T00:00:00-05:00 | Model-independent search of gravitational wave echoes in LVK data | arXiv:2512.24730v1 Announce Type: cross Abstract: Gravitational wave echoes offer a unique probe of the near-horizon structure of astrophysical black holes, beyond the standard ''black hole spectroscopy''. Theoretical waveform predictions, however, remain uncertain, motivating robust searches that avoid specific echo m... | https://arxiv.org/abs/2512.24730 | Academic Papers | svg |
fc1ba0c6d490580348821e67e7f136f0ddd90876c07c47742a489f4f8dcff966 | 2026-01-01T00:00:00-05:00 | Loop-Level Lepton Flavor Violation and Diphoton Signals in the Minimal Left-Right Symmetric Model | arXiv:2512.25019v1 Announce Type: cross Abstract: The left-right symmetric model (LRSM) could not only restore parity of the weak interaction, but also provide natural explanations of the tiny active neutrino masses via the seesaw mechanisms. The $SU(2)_R$-breaking scalar $H_3$ can induce lepton flavor violating (LFV) ... | https://arxiv.org/abs/2512.25019 | Academic Papers | svg |
d8e5728c36c191a2f6752f27092809543ab2cf9560a67c51dc8676995f2173a0 | 2026-01-01T00:00:00-05:00 | Primordial black hole dark matter from ultra-slow-roll inflation in Horndeski gravity | arXiv:2512.25044v1 Announce Type: cross Abstract: Primordial black holes (PBHs) provide a well-motivated non-particle candidate for dark matter, requiring an enhancement of curvature perturbations on small inflationary scales consistent with observational constraints. In this work we study PBH production within Horndes... | https://arxiv.org/abs/2512.25044 | Academic Papers | svg |
af1b07392dff5287ffaf6b6a9babca09d51fb8d72e516ba9b6f3e385e892ffd0 | 2026-01-01T00:00:00-05:00 | Effect of Magnetised Discontinuity on Diffusive Shock Acceleration | arXiv:2401.08969v2 Announce Type: replace Abstract: We investigate the impact of magnetic fields and diffusion mechanisms on the energy spectra of particles accelerated via diffusive shock acceleration. We analyse magnetised shock jump conditions and demonstrate how magnetisation and angular dependence modify upstream ... | https://arxiv.org/abs/2401.08969 | Academic Papers | svg |
a3a4aa693c3747391e0fb4ea7afc3146ab9adf26b7829ab1d061fea1ed9f8bb6 | 2026-01-01T00:00:00-05:00 | Observation of the $\gamma$-ray Emission from W43 with LHAASO | arXiv:2408.09905v2 Announce Type: replace Abstract: In this paper, we report the detection of the very-high-energy (VHE, $ 100{\rm\ GeV} 100\rm\ TeV$) $\gamma$-ray emissions from the direction of the young star-forming region W43, observed by the Large High Altitude Air Shower Observation (LHAASO). The extended $\gamma... | https://arxiv.org/abs/2408.09905 | Academic Papers | svg |
e469e8cef417f670e655d14d2452b00fb9da9c89ef2303fc26e3c7acb56aeb4c | 2026-01-01T00:00:00-05:00 | Deep view of Composite SNR CTA1 with LHAASO in $\gamma$-rays up to 300 TeV | arXiv:2409.09499v2 Announce Type: replace Abstract: The ultra-high-energy (UHE) gamma-ray source 1LHAASO J0007+7303u is positionally associated with the composite SNR CTA1 that is located at high Galactic Latitude $b\approx 10.5^\circ$. This provides a rare opportunity to spatially resolve the component of the pulsar w... | https://arxiv.org/abs/2409.09499 | Academic Papers | svg |
09225089b0631d8f78379d226f0c81b68f1961b4a4e0f8fb154099e6a5afec25 | 2026-01-01T00:00:00-05:00 | RHINO: A large horn antenna for detecting the 21cm global signal | arXiv:2410.00076v2 Announce Type: replace Abstract: The sky-averaged brightness temperature of the 21cm line from neutral hydrogen provides a sensitive probe of the thermal state of the intergalactic medium, particularly before and during Cosmic Dawn and the Epoch of Reionisation. This `global signal' is faint, on the ... | https://arxiv.org/abs/2410.00076 | Academic Papers | svg |
59a469a2a308c771c3a7a58eaa04ec0547b6ed5184ccb7cfcf779a2adf16ee45 | 2026-01-01T00:00:00-05:00 | Unraveling the Nature of HAWC J1844-034 with Fermi-LAT Data Analysis and Multi-wavelength Modeling | arXiv:2501.12065v2 Announce Type: replace Abstract: The extended ultra-high-energy (UHE) gamma-ray source HAWC J1844-034 is closely associated with two other sources, HAWC J1843-032 and HWC J1846-025. Moreover, other gamma-ray observatories like H.E.S.S., LHAASO, and Tibet AS$_{\gamma}$ have detected UHE gamma-ray sour... | https://arxiv.org/abs/2501.12065 | Academic Papers | svg |
786a1cf8aa9ea72f7adfcb2cddeaf4ed70693edeb707887fdc91e4f5cfa7e4e7 | 2026-01-01T00:00:00-05:00 | Gravitational wave probes of particle dark matter: a review | arXiv:2503.02607v5 Announce Type: replace Abstract: Various theories of dark matter predict distinctive astrophysical signatures in gravitational-wave sources that could be observed by ground- and space-based laser interferometers. Different candidates-including axions, dark photons, macroscopic dark matter, WIMPs, and... | https://arxiv.org/abs/2503.02607 | Academic Papers | svg |
1de795bd507cd69899e291c0dc12bfcaa8541d6c8428a3d641d607d7fee76b98 | 2026-01-01T00:00:00-05:00 | NLTE spectral modelling for a carbon-oxygen and helium white-dwarf merger as a Ca-rich transient candidate | arXiv:2503.12105v2 Announce Type: replace Abstract: We carry out NLTE (non local thermodynamic equilibrium) radiative transfer simulations to determine whether explosion during the merger of a carbon-oxygen (CO) white dwarf (WD) with a helium (He) WD can reproduce the characteristic Ca II/[Ca II] and He I lines observe... | https://arxiv.org/abs/2503.12105 | Academic Papers | svg |
c3307033454c0b0189822a9fd17a6e5df22e9b28f217e2e6fb1c6885dc4d4869 | 2026-01-01T00:00:00-05:00 | Study of Ultra-High-Energy Gamma-Ray Source 1LHAASO J0056+6346u and Its Possible Origins | arXiv:2504.00601v2 Announce Type: replace Abstract: We report a dedicated study of the newly discovered extended UHE $\gamma$-ray source 1LHAASO J0056+6346u. Analyzing 979 days of LHAASO-WCDA data and 1389 days of LHAASO-KM2A data, we observed a significant excess of $\gamma$-ray events with both WCDA and KM2A. Assumin... | https://arxiv.org/abs/2504.00601 | Academic Papers | svg |
4901baa741a6b37de63cfc2b17f2fcf1a1d4ad0fa97c7112fcd66b905089e6fa | 2026-01-01T00:00:00-05:00 | Constraining Lens Masses in Moderately to Highly Magnified Microlensing Events from Gaia | arXiv:2504.11546v2 Announce Type: replace Abstract: Microlensing events provide a unique way to detect and measure the masses of isolated, non-luminous objects, particularly dark stellar remnants. Under certain conditions, it is possible to measure the mass of these objects using photometry alone, specifically when a m... | https://arxiv.org/abs/2504.11546 | Academic Papers | svg |
5f16fcb19e56eeaa00bb7e5eac180316375b318271e6fa950fb0d5b601de15a8 | 2026-01-01T00:00:00-05:00 | Intermediate-mass black holes and contribution to extragalactic background light from Population III stars in Milky Way-like galaxies | arXiv:2505.02245v2 Announce Type: replace Abstract: The mass range of observed black holes extends from stellar-mass to supermassive scales, yet the existence of objects in the intermediate-mass range of $10^{2} - 10^{5} \text{M}_{\odot}$ remains unconfirmed. Black holes are suspected to compress the surrounding dark m... | https://arxiv.org/abs/2505.02245 | Academic Papers | svg |
8965cc36d691c1f783593e156d59599eab82ecbc17a045af8f301ceea7bf0ca8 | 2026-01-01T00:00:00-05:00 | When Dark Matter Heats Up: A Model-Independent Search for Non-Cold Behavior | arXiv:2505.09470v2 Announce Type: replace Abstract: This article questions the common assumption of cold dark matter (DM) by exploring the possibility of a non-zero equation of state (EoS) without relying on any parametric approach. In standard cosmological analyses, DM is typically modeled as pressureless dust with $w... | https://arxiv.org/abs/2505.09470 | Academic Papers | svg |
5c9de374652bed6f678bc5c3020605af3b765b16efd9eb3de99850afb09c4788 | 2026-01-01T00:00:00-05:00 | Search for Lorentz Invariance Violation with spectral lags of GRB 190114C using profile likelihood | arXiv:2506.05737v3 Announce Type: replace Abstract: We search for Lorentz invariance violation (LIV) by re-analyzing the spectral lag data for GRB 190114C \rthis{from Fermi-GBM} using frequentist analysis, where we deal with the astrophysical nuisance parameters using profile likelihood. For this use case, we find a gl... | https://arxiv.org/abs/2506.05737 | Academic Papers | svg |
28f32d3e80cf39e3e2ea3b72aebd05cf27574deee1020392189b9591830c5a85 | 2026-01-01T00:00:00-05:00 | XSPECT on-board XPoSat: Calibration and First Results | arXiv:2506.09918v2 Announce Type: replace Abstract: XPoSat is India's first X-ray spectro-polarimetry mission, consisting of two co-aligned instruments, a polarimeter (POLIX) and a spectrometer (XSPECT), to study the X-ray emission from celestial sources. Since polarimetry is a photon-hungry technique, the mission is d... | https://arxiv.org/abs/2506.09918 | Academic Papers | svg |
5390bee83d69eca742fcf83e15c84ba328633fbedf18085b31ce939e270537a4 | 2026-01-01T00:00:00-05:00 | Kinematic Confirmation of a Remarkable Linear Trail of Galaxies in the NGC 1052 Field, Consistent with Formation in a High-Speed Bullet Dwarf Collision | arXiv:2506.10220v2 Announce Type: replace Abstract: A unique linear trail of diffuse galaxies was recently identified in the NGC 1052 field. This trail includes the remarkable, ultra-diffuse galaxies DF2 and DF4 which lack dark matter and host unusually luminous globular clusters. It has been proposed that the trail fo... | https://arxiv.org/abs/2506.10220 | Academic Papers | svg |
965e876e53a99b6fbc5eeb7cf1ee81285a201b77bc2ff7086d1c5b37e65b5ddf | 2026-01-01T00:00:00-05:00 | Supermassive Stars Match the Spectral Signatures of JWST's Little Red Dots | arXiv:2507.12618v3 Announce Type: replace Abstract: The James Webb Space Telescope (JWST) has unveiled a population of enigmatic, compact sources at high redshift known as ``Little Red Dots'' (LRDs), whose physical nature remains a subject of intense debate. Concurrently, the rapid assembly of the first supermassive bl... | https://arxiv.org/abs/2507.12618 | Academic Papers | svg |
cc68356aeb564aa7399ad830a289d37067e5abd5dcdbc8d7c96b1a66ca5fd624 | 2026-01-01T00:00:00-05:00 | Growth Index in the $\gamma\delta$CDM model | arXiv:2508.14749v3 Announce Type: replace Abstract: To better distinguish the nature of $H_0$ and $S_8$ tensions, it is necessary to separate the effects of expansion and the growth of structure. The growth index $\gamma$ was identified as the most important parameter that characterizes the growth of density fluctuatio... | https://arxiv.org/abs/2508.14749 | Academic Papers | svg |
5d4b274daec64b73cfb69d54ce2c25d7f8a13893e8f5d5c2b88cecb8af00a778 | 2026-01-01T00:00:00-05:00 | Primordial Black Holes Evaporating before Big Bang Nucleosynthesis | arXiv:2509.05618v2 Announce Type: replace Abstract: Primordial black holes (PBHs) formed from the collapse of density fluctuations provide a unique window into the physics of the early Universe. Their evaporation through Hawking radiation around the epoch of Big Bang nucleosynthesis (BBN) can leave measurable imprints ... | https://arxiv.org/abs/2509.05618 | Academic Papers | svg |
7383c013a975ebd3db4bfd15ad81287e3e32d2c665ff30e21f1da17414d8971a | 2026-01-01T00:00:00-05:00 | Explaining the Origin of TeV Gamma Rays from M87 During High and Low States | arXiv:2509.21314v2 Announce Type: replace Abstract: The detection of very high-energy gamma-rays from M87 can provide crucial insights into particle acceleration and radiation mechanisms in jets. The recent observations by the Large High Altitude Air Shower Observatory (LHAASO) detector extend the energy range of TeV g... | https://arxiv.org/abs/2509.21314 | Academic Papers | svg |
daafad52b5f83761fde541529bf9b36aea18c0b848ac62be1cd6854ad9f051cd | 2026-01-01T00:00:00-05:00 | FITrig: A High-Performance Detection Technique for Efficient Ultra-Long-Period Pulsars | arXiv:2509.21754v2 Announce Type: replace Abstract: Ultra-long-period (ULP) pulsars, a newly identified class of celestial transients, offer unique insights into astrophysics, though very few have been detected to date. In radio astronomy, most time-domain detection methods cannot find these pulsars, and current image-... | https://arxiv.org/abs/2509.21754 | Academic Papers | svg |
b0c444d68ddaad273df1800c2d5b611980fe82f512ff88969548488c89f872b0 | 2026-01-01T00:00:00-05:00 | Closing the Evidence Gap: reddemcee, a Fast Adaptive Parallel Tempering Sampler | arXiv:2509.24870v2 Announce Type: replace Abstract: Markov Chain Monte Carlo (MCMC) excels at sampling complex posteriors but traditionally lags behind nested sampling in accurate evidence estimation, which is crucial for model comparison in astrophysical problems. We introduce reddemcee, an Adaptive Parallel Tempering... | https://arxiv.org/abs/2509.24870 | Academic Papers | svg |
2cc207177eb6925d6cf670930eb494a692e035b8b775bd575ae09c90a12ac096 | 2026-01-01T00:00:00-05:00 | Dynamical Architectures of S-type Transiting Planets in Binaries II: A Dichotomy in Orbital Alignment of Small Planets in Close Binary Systems | arXiv:2509.25332v2 Announce Type: replace Abstract: Stellar multiplicity plays a crucial role in shaping planet formation and dynamical evolution. We present a survey of 54 TESS Objects of Interest (TOIs) within 300 pc that exhibit significant Hipparcos-Gaia astrometric accelerations. We identified 35 TOIs with stellar... | https://arxiv.org/abs/2509.25332 | Academic Papers | svg |
ef145063d8c9ae3e85c8b91126a9129a7871a0bbaac019cc56ef2706a07b9325 | 2026-01-01T00:00:00-05:00 | Effects of Coronal Mass Ejection on PSR J1022+1001 and Possible Mode Change of PSR J2145-0750 in the InPTA DR2 | arXiv:2510.26594v2 Announce Type: replace Abstract: The Indian Pulsar Timing Array (InPTA) has recently published its second data release (DR2), comprising the timing analysis of seven years of data on 27 millisecond pulsars (MSPs), observed simultaneously in the 300-500 MHz (band 3) and 1260-1460 MHz (band 5), using t... | https://arxiv.org/abs/2510.26594 | Academic Papers | svg |
e8260377f98deeb5b84e948e284517eb11d111f012b0d82c3271aa93ea5d21d6 | 2026-01-01T00:00:00-05:00 | An alternative theory of magnetic flux tubes in strong fields via axion origin photons | arXiv:2511.04346v2 Announce Type: replace Abstract: In our alternative theory, built around the coincidence of experimental and theoretical data, three "free" parameters -- the magnetic field in the tachocline of the order of ~10^7 G (see Fig.(A.1) and Eq.(A17) in V. D. Rusov et al. (2021)), the axion mass ma ~3.2*10^{... | https://arxiv.org/abs/2511.04346 | Academic Papers | svg |
70e2ce14ba386f680cb885135c56ce3014aa8a43babb3e810f8f656db7cf9771 | 2026-01-01T00:00:00-05:00 | EMPEROR I. Exoplanet MCMC parallel tempering for RV orbit retrieval | arXiv:2511.05331v2 Announce Type: replace Abstract: We present EMPEROR, an open-source Python framework designed for efficient exoplanet detection and characterisation with radial velocities (RV). EMPEROR integrates Dynamic Nested Sampling (DNS) and Adaptive Parallel Tempering (APT) Markov Chain Monte Carlo (MCMC), sup... | https://arxiv.org/abs/2511.05331 | Academic Papers | svg |
b576a5f66873bcdb5542925981c80f3d4837e3c9842d1e266062d369d6cc29dd | 2026-01-01T00:00:00-05:00 | Cosmogenic Origin of KM3-230213A: Delayed Gamma-Ray Emission from A Cosmic-Ray Transient | arXiv:2511.18144v2 Announce Type: replace Abstract: The highest-energy cosmic neutrino detected by the ARCA detector of KM3NeT has reignited the quest to pinpoint the sources of ultrahigh-energy cosmic rays (UHECRs; $E\gtrsim 0.1$ EeV). By uncovering the associated multimessenger signals, we investigate the origin of t... | https://arxiv.org/abs/2511.18144 | Academic Papers | svg |
71d07a1bbcaeb73f0fbd06169e8fcf99b31a267bd87c2d992864db85df469c59 | 2026-01-01T00:00:00-05:00 | Constraining the Properties of GRB Accreting Magnetar with $R/I$ Evolutionary Effects Using \emph{Swift}/XRT Data | arXiv:2511.22149v2 Announce Type: replace Abstract: A newly born millisecond magnetar has been proposed as one possible central engine of some long gamma-ray bursts (LGRBs) with X-ray plateau. In this work, we used a universal correlation between initial spin period ($P_0$) and surface magnetic field ($B_p$) of newborn... | https://arxiv.org/abs/2511.22149 | Academic Papers | svg |
e580a8c22e7d4bac4aeb73bcf09b1c446d59e0e93d3a323a275232116cf88658 | 2026-01-01T00:00:00-05:00 | Radio Detection of a Local Little Red Dot | arXiv:2512.03331v2 Announce Type: replace Abstract: Context. One of the most important discoveries by the James Webb Space Telescope (JWST) is the unexpected existence in the Early Universe (z > 4) of very large quantities of "Little Red Dots" (LRDs), compact luminous red galaxies of intriguing physical properties. One... | https://arxiv.org/abs/2512.03331 | Academic Papers | svg |
766bc8dceffbd0e738c50761a5ac70dafb045e26fe3cb035255f3453984010af | 2026-01-01T00:00:00-05:00 | Resolving dust and Ly{\alpha} emission in a lensed galaxy at the epoch of reionization with JWST/CANUCS | arXiv:2512.13778v2 Announce Type: replace Abstract: Lyman $\alpha$ emission is highly sensitive to dust and neutral hydrogen and is therefore expected to be strongly suppressed in dusty or gas-rich galaxies during the epoch of reionization (EoR). Nevertheless, numerous moderately dusty Ly$\alpha$ emitters (LAEs) are ob... | https://arxiv.org/abs/2512.13778 | Academic Papers | svg |
964bc828958d0f1f6a2b8dbcbb8872060d9fb3f149fc1889fca20b49a831e492 | 2026-01-01T00:00:00-05:00 | NGC 3521 as the Milky Way near twin: spectral energy distribution from UV to radio decameter ranges | arXiv:2512.14664v2 Announce Type: replace Abstract: Milky Way analogues (MWAs) are usually selected from structural and kinematic properties, but robust SED-based similarity criteria are limited by heterogeneous photometry and incomplete wavelength coverage. We present a homogeneous, aperture-photometry SED of the Milk... | https://arxiv.org/abs/2512.14664 | Academic Papers | svg |
df8f68f08a82c6fe56be20dbb49a9db002d2750b6e1d450e4011943cad1c54dd | 2026-01-01T00:00:00-05:00 | Photometric and spectroscopic variability of the blue supergiant rho Leo | arXiv:2512.15345v2 Announce Type: replace Abstract: Context. The post-main-sequence evolution of massive stars remains poorly understood, particularly for blue supergiants. These objects play a crucial role in the dynamical and chemical evolution of galaxies and exhibit pronounced photometric and spectroscopic variabil... | https://arxiv.org/abs/2512.15345 | Academic Papers | svg |
57fb7e7cf172d5067128f554b831955f93e5f4857eaa9fa408bc43dc68e3c7d0 | 2026-01-01T00:00:00-05:00 | Long-term monitoring of repeating FRB 20220912A with the uGMRT at low radio frequencies | arXiv:2512.21889v2 Announce Type: replace Abstract: Some repeating FRBs exhibit occasional extreme repetition rates, but very few show a sustained high activity level. One such hyperactive repeater is FRB 20220912A, which was discovered by CHIME/FRB Collaboration on 2022 September 12. Here, we present results from a lo... | https://arxiv.org/abs/2512.21889 | Academic Papers | svg |
255cd025b7b6dba8d6c74dea8514c2e0b5dfb8631de7aad013daed0bf923a6c8 | 2026-01-01T00:00:00-05:00 | Rotation and stability of the circumnuclear gas disk in the Galactic Center potential by the ALMA CMZ Exploration Survey (ACES) | arXiv:2512.22751v2 Announce Type: replace Abstract: We investigated the gravitational potential and mass distribution in the Galactic Center by examining the morphology and kinematics of the circumnuclear gaseous disk revealed by the molecular line data from the ALMA CMZ Exploration Survey (ACES). We obtain an estimate... | https://arxiv.org/abs/2512.22751 | Academic Papers | svg |
0539b43da3d27cfd22479daded7d86bf4e39f9ab9ba37447a1f5fb0c4e03061f | 2026-01-01T00:00:00-05:00 | Baryogenesis via the Chiral Magnetic Effect in a First-Order Electroweak Phase Transition | arXiv:2409.16091v2 Announce Type: replace-cross Abstract: In this paper, we investigate the generation of the baryon asymmetry of the universe during the first-order electroweak phase transition. We first study the generation of the helical magnetic field in the framework of the standard model effective field theory wi... | https://arxiv.org/abs/2409.16091 | Academic Papers | svg |
7a0be03edb4e053decb9941d54c99d388d1c94a1f7c69c9872d5b8808b0676c1 | 2026-01-01T00:00:00-05:00 | Predictions on observing hot holographic quark star with gravitational waves | arXiv:2501.17121v2 Announce Type: replace-cross Abstract: We extract the equation of state of hot quark matter from a holographic 2+1 flavor QCD model, which could form the core of a stable compact star. By adding a thin hadron shell, a new type of hybrid star is constructed. With the temperature serving as a parameter... | https://arxiv.org/abs/2501.17121 | Academic Papers | svg |
30581ef2cf06f33047f8547116dd5209f02c30845df2e0c49b40b61239b0aea0 | 2026-01-01T00:00:00-05:00 | High-Frequency Thermal Graviton Remnant from the End of Inflation | arXiv:2504.17533v2 Announce Type: replace-cross Abstract: The standard inflationary theory focuses on the freezing of super-horizon fluctuations, which generate a scale-invariant spectrum, while the sub-horizon modes are expected to remain in thermal equilibrium. Building upon recent development of quantum thermodynami... | https://arxiv.org/abs/2504.17533 | Academic Papers | svg |
a181cfeaa391816f696f93fcacfb44d474ec2d87b6da7c2bee03b54c72bfcbf3 | 2026-01-01T00:00:00-05:00 | Probing Right Handed Neutrino assisted Reheating with Gravitational Waves and Leptogenesis | arXiv:2507.09728v2 Announce Type: replace-cross Abstract: We investigate a non-instantaneous reheating period in the early Universe, where the inflaton field decays exclusively to right-handed neutrinos (RHNs). The subsequent decay of these RHNs into Standard Model particles not only drives the transition to a radiatio... | https://arxiv.org/abs/2507.09728 | Academic Papers | svg |
992220c9c1b042f387b167598449466b816d40284b1e99bdebf68826e16a4fcb | 2026-01-01T00:00:00-05:00 | Electromagnetic helicity flux density for radiative systems | arXiv:2507.14966v2 Announce Type: replace-cross Abstract: We show that the helicity flux density is distinguished from magnetic helicity by analysing Hopf solitons. The electromagnetic (EM) helicity flux and the magnetic helicity are Chern-Simons terms at different hypersurfaces. We find the helicity flux density for a... | https://arxiv.org/abs/2507.14966 | Academic Papers | svg |
92746060a01c55a775014942009d04d7834156c2f3f3f580444f79a7207a6cfe | 2026-01-01T00:00:00-05:00 | Importance of relativistic pericenter precession in identifying the presence of a third body near eccentric binaries | arXiv:2508.17348v2 Announce Type: replace-cross Abstract: Many astrophysical processes can produce gravitational wave (GW) sources with significant orbital eccentricity. These binaries emit bursts of gravitational radiation during each pericenter passage. In isolated systems, the intrinsic timing of these bursts is sol... | https://arxiv.org/abs/2508.17348 | Academic Papers | svg |
032862c63591768b438b9d7569f80003d0a9e449cdb45c17c03ecb96806c0580 | 2026-01-01T00:00:00-05:00 | Updating GUT-Scale Pole Higgs Inflation After ACT DR6 | arXiv:2510.02083v2 Announce Type: replace-cross Abstract: We consider models of chaotic inflation driven by the real parts of a conjugate pair of Higgs superfields involved in the spontaneous breaking of a grand unification symmetry at a scale assuming its value within MSSM. We combine a superpotential, which is unique... | https://arxiv.org/abs/2510.02083 | Academic Papers | svg |
7d748f8c64d454aae2c0a1b51dae4cc6fec75181c9ab48284fb639622af05ab1 | 2026-01-01T00:00:00-05:00 | On the maximum compactness of neutron stars | arXiv:2510.12870v2 Announce Type: replace-cross Abstract: The stellar compactness, that is, the dimensionless ratio between the mass and radius of a compact star, $\mathcal{C} := M/R$, plays a fundamental role in characterising the gravitational and nuclear-physics aspects of neutron stars. Yet, because the compactness... | https://arxiv.org/abs/2510.12870 | Academic Papers | svg |
50a61354fea56603f31c0c666a28d6a48d46798c8ae696f88abd2ec0f4ca2a77 | 2026-01-01T00:00:00-05:00 | Net Charge Accretion in Magnetized Kerr Black Holes | arXiv:2511.22356v3 Announce Type: replace-cross Abstract: We investigate the charging process of a rotating Kerr black hole of mass $M$ and angular momentum $J$ immersed in a stationary, axisymmetric, asymptotically uniform magnetic field of strength $B_{0}$. In Wald's classic analysis (Wald 1974), which was based on t... | https://arxiv.org/abs/2511.22356 | Academic Papers | svg |
8c493347a9ce857a194d9697ca32a81bb8fe2e838455c63eb8392f5716ccb1e9 | 2026-01-01T00:00:00-05:00 | RepoMech: A Method to Reduce the Balance-Sheet Impact of Repo Intermediation | arXiv:2512.23842v1 Announce Type: new Abstract: A repo trade involves the sale of a security coupled with a contract to repurchase at a later time. Following the 2008 financial crisis, accounting standards were updated to require repo intermediaries, who are mostly banks, to increase recorded assets at the time of the ... | https://arxiv.org/abs/2512.23842 | Academic Papers | svg |
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