291 papers
Using MIGHTEE survey data across three fields, this study reveals that radio-AGN reside in increasingly massive dark matter haloes at lower redshifts with a duty cycle of 5–9%, suggesting that their enhanced clustering relative to non-active galaxies stems from either AGN feedback suppressing stellar growth or a preference for earlier-forming haloes.
This study utilizes the high sensitivity of the MeerKAT radio telescope to search for synchrotron emission from Weakly Interacting Massive Particles (WIMPs) in the Reticulum II dwarf spheroidal galaxy, establishing improved constraints on WIMP properties and demonstrating the potential of radio astronomy for dark matter detection.
This study demonstrates that incorporating dropout regularization into an AlexNet-based Convolutional Neural Network significantly enhances the precision and robustness of inferring gravitational lens parameters from simulated China Space Station Telescope images, reducing relative errors by 60–76% compared to models without dropout.
This study uses 3D simulations to demonstrate that while binary mergers of bosonic dark matter cores consistently produce stable solitonic remnants, the final mass retention is non-universal and critically depends on whether repulsive or attractive self-interactions are present, whereas the inclusion of an ideal gas component modifies the gravitational background without altering the intrinsic scaling of the bosonic core.
This paper reports the detection of a likely 2.4-year quasi-periodic oscillation in the 37 GHz radio light curve of the blazar Ton 599, observed between 1990 and 2020 using multiple statistical analysis methods.
This paper introduces a novel statistical component separation method using Scattering Covariance statistics to effectively disentangle Galactic dust emission from Cosmic Infrared Background anisotropies in Planck 353 GHz data, overcoming the limitations of traditional template-fitting approaches in regions with complex gas phases.
Using high-cadence TESS optical data, this study analyzes the variability of blazar S5 0716+714, finding that its light curves are best described by bending power laws and complex CARMA processes rather than simple damped random walks, while also identifying a potential ~6.5-hour quasi-periodic oscillation with ~95% global significance.
This paper reports evidence for a spatial variation in the electron-to-proton mass ratio, showing a significant shift in methanol spectral lines toward the Galactic center's SgrB2(N) cloud compared to the distant Orion-KL cloud, a finding potentially linked to dark matter's modulation of the Higgs scalar field.
Using controlled simulations of isolated galaxies, this study identifies halo concentration as the dominant predictor of galaxy size at the massive-dwarf mass scale, while also quantifying the systematic influences of halo spin, inner density profile, and baryon fraction on stellar and cold baryon radii.
This study demonstrates that by incorporating environmental density as a free parameter in Bayesian analyses of RELHIC gas distributions, researchers can robustly and unbiasedly infer the virial masses of individual starless dark matter halos, effectively overcoming mass-concentration degeneracies to establish a reliable framework for weighing these objects in future surveys.
The X-SORTER program demonstrates that selecting redMaPPer galaxy clusters with low top BCG probability and significant BCG separation is an efficient method for identifying dynamically active, post-pericenter merger candidates, which were confirmed via new X-ray and spectroscopic observations to be ideal systems for constraining dark matter self-interactions.
This paper explores extending Bimetric MOND (BIMOND) to create variable- theories that naturally satisfy local constraints on the constancy of Newton's constant while allowing for a different, enhanced effective gravitational constant () in cosmological settings to potentially explain dark matter effects without new degrees of freedom.
This paper demonstrates that the Qwen2.5 Large Language Model, when combined with connector networks to form a "Lightcone LLM," can effectively analyze and generate 3D cosmological maps from SKA data, outperforming standard initialization methods and matching dedicated networks of similar size for tasks like parameter regression and lightcone generation.
This paper derives a model-independent upper limit on the amplitude of a chiral gravitational wave background produced before the electroweak epoch, which, for high reheating temperatures, provides a significantly more stringent constraint than standard big bang nucleosynthesis bounds at frequencies above the MHz scale.
This paper proposes a unified framework based on an extended Froggatt-Nielsen mechanism and a symmetry that simultaneously explains the origins of light Dirac neutrino masses, GeV-scale asymmetric dark matter, and the baryon asymmetry of the Universe through Dirac-type leptogenesis with exact lepton-number conservation.
This paper investigates fermionic dark matter in the scotogenic model within a low reheating temperature cosmology, demonstrating that entropy injection relaxes relic density constraints and that next-generation direct detection and charged lepton flavor violation experiments can effectively probe the resulting expanded parameter space.
This paper proposes a novel mechanism for generating high-frequency gravitational waves at approximately $10^{10}$ Hz through gravitational transition radiation, where particles emit gravitons as their masses change while traversing expanding bubble walls during first-order phase transitions in the early Universe.
This paper critiques a 2025 study by Ballardini et al. for incorrectly calculating third-order slow-roll corrections due to improper integration techniques, demonstrating through numerical Monte-Carlo methods that the original exact analytical results by Auclair and Ringeval remain valid.
This paper presents a numerically efficient method for evaluating a two-loop contribution to the dark-matter trispectrum by expanding around a fixed reference cosmology, achieving sub-percent accuracy with only third-order terms and offering a practical pathway for faster computations of higher-order correlators in the Effective Field Theory of Large-Scale Structure.
This paper presents the updated 2025 Physics Briefing Book for the Latin American Strategy Forum for Research Infrastructure in High Energy, Cosmology, and Astroparticle Physics (LASF4RI-HECAP), which synthesizes 46 community white papers and symposium discussions to establish a long-term strategic roadmap across seven key scientific and technical working groups.