960 papers
This paper presents a fully reproducible black hole-neutron star merger simulation targeting the GW230529 event, performed using the Einstein Toolkit at multiple resolutions and released as a new gallery example to establish a standard reference configuration for future research.
By analyzing the two recent catastrophic collision events in the Fomalhaut system, this study employs a statistical model to constrain the main belt's total mass to 200–360 Earth masses and predicts a high rate of future collisions, indicating that continued monitoring is essential for understanding the system's planetesimal population.
This paper investigates the Little Rip dark energy model as a potential solution to the and cosmological tensions using recent observational data, including DESI-DR2, and finds that while the model reduces the Hubble tension to below $3\sigma\Lambda$CDM model.
This paper estimates the detection rates of TeV-emitting Gamma-Ray Bursts similar to GRB 221009A for current and upcoming ground-based observatories (LHAASO, LACT, and SWGO) under two emission models, predicting annual detection frequencies ranging from 0.03 to 0.4 events depending on the instrument and model assumptions.
This paper presents a new likelihood-based method using James Webb Space Telescope photometry of brown dwarf cooling sequences to determine globular cluster ages with high precision, while analyzing key systematic uncertainties and providing observational guidelines for future studies.
This paper proposes a unified model for jet formation in diverse astrophysical systems, suggesting that turbulence-stored binding energy in thick accretion disks accelerates stable blobs through funnel structures to create opposing jets originating from the innermost disk region.
This paper presents a methodology for searching for unintended electromagnetic radiation from Starlink satellites using the 21 Centimeter Array, which, despite limited sensitivity preventing the detection of Starlink emissions, successfully validated its transit prediction framework by identifying ORBCOMM signals and attributed observed broadband bursts to local power line arcing rather than satellite interference.
This paper extends previous research on gravitational waves from a unified warm inflation and dark sector model to the weak dissipation regime, demonstrating through continuous Bogoliubov coefficient calculations that this scenario significantly enhances the prospects for detection by future gravitational-wave observatories compared to the strong dissipation regime.
This paper confirms the six-year persistence of highly coherent 25.01-hour and 23.1-minute periodic signals in the white dwarf WD 1054-226, revealing a stable, optically thick, edge-on debris ring that serves as a key laboratory for studying remnant planetary systems.
This study uses hydrodynamical simulations and synthetic ALMA imaging to demonstrate that multiple super-thermal mass planets create complex, non-superimposable dust structures and eccentric orbits that obscure gaps and suppress grain growth, thereby complicating the interpretation of disk substructures and the inference of planetary properties.
This paper demonstrates that chiral dynamos, proposed as a mechanism for generating magnetic fields in protoneutron stars and the early universe, are significantly inefficient and often suppressed because realistic timescales for chirality imbalance creation and chiral flipping rates drastically limit the instability growth rate.
This paper presents multi-epoch optical spectroscopy of the interstellar comet 3I/ATLAS from late 2025 to early 2026, revealing post-perihelion compositional shifts—including enhanced metal and CO production and a gradual volatile decline—that suggest the activation of subsurface material, seasonal heterogeneity, and potential metal carbonyl chemistry.
This study demonstrates the feasibility of using BlackGEM's ground-based multi-colour photometry to identify pulsation modes in the hot pre-white dwarf PG 1159-035 through amplitude-ratio analysis, paving the way for large-scale asteroseismic characterization of faint compact pulsating stars.
This paper presents a refined sample of 15 new high-probability Spiral Double Radio Active Galactic Nuclei (SDRAGNs) identified through Radio Galaxy Zoo and Hubble Space Telescope observations, revealing that these rare hosts of large FR II radio sources are preferentially edge-on, harbor pseudobulges, exhibit diverse nuclear activity including star formation, and reside in significant galaxy overdensities.
This paper reports the discovery of ASKAP J142431.2-612611, a new 36-minute period radio transient observed for eight days with 100% polarized emission that subsequently switched off, offering new insights into the intermittent nature and polarization mechanisms of long-period transients.
This paper proposes a symmetry-protected interacting dark energy model where a pseudo-Nambu-Goldstone Boson couples to inert scalar dark matter solely through momentum exchange, demonstrating that while this mechanism modifies cosmological perturbations, it has an intrinsic limit on suppressing structure growth () that prevents it from fully resolving current low-redshift tensions.
This paper presents a refined lepto-hadronic model based on turbulent magnetic reconnection that successfully reproduces the high-energy neutrino flux excess observed from the obscured AGN NGC 1068 while explaining the absence of a TeV gamma-ray counterpart.
Using VISTA near-infrared photometry of red giant stars, this study reveals a systematic age gradient in the Galactic Bulge where stellar populations become significantly older with increasing galactic latitude, suggesting a dual origin involving a younger pseudo-bulge formed by disk/bar processes near the plane and an older spheroidal component from early collapse or mergers at higher latitudes.
This paper analyzes NICER observations of the newly discovered black hole X-ray binary Swift J151857.0-572147 to demonstrate how its spin parameter depends on mass, inclination, and distance, yielding a moderate spin of approximately 0.7 for fiducial values while establishing a framework for more precise future determinations.
This study utilizes high-resolution observations from the Goode Solar Telescope and SDO/HMI to reveal that the fine structure of a bipolar light bridge in NOAA AR 13663 consists of 100–150 km penumbral-like filaments with stable red- and blueshifted patterns, forming through the converging and shearing interaction of oppositely polarized sunspots.