1088 papers
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.
This paper presents the design and multi-dimensional performance analysis of a lightweight, off-axis four-mirror laser transmitting telescope for space gravitational wave detection, demonstrating that the optimized structure achieves high optical efficiency, nanometer-level surface stability, and robust thermal and dynamic performance under harsh space conditions.
This paper introduces the Galaxy Replacement Technique (GRT), a high-resolution -body simulation framework designed to efficiently model the gravitational evolution of stellar components and Low-Surface-Brightness (LSB) structures, thereby providing a theoretical foundation for interpreting upcoming deep imaging data from the K-DRIFT telescope.
Using high-resolution MMS data from the outer Plasma Sheet Boundary Layer, this study characterizes Kinetic Alfvén Wave turbulence through a steep kinetic-range spectral slope and impulsive parallel electric fields, providing observational evidence for collisionless energy dissipation via direct wave-particle interactions in the magnetotail.
This study combines simulated mock observations and SAMI survey data to demonstrate that stellar bar formation reduces galaxy spin proxies and that weakly barred galaxies exhibit younger stellar populations and higher spin values, suggesting they are in a rapid formation phase compared to the slower secular evolution of strongly barred galaxies.
This paper utilizes JWST/NIRCam photometry to identify a large sample of contamination-free Red Supergiant candidates across five metal-poor Local Group galaxies by establishing an optimal color-color diagram, thereby demonstrating JWST's superior capability to construct more complete stellar censuses than previous studies.
The JWST POPPIES program has identified CGG-z7, a unique pre-virialized galaxy group at consisting of six compact members undergoing a major merger, which exhibits extreme ionization and a high stellar-to-dynamical mass ratio indicative of rapid, chaotic assembly toward forming a massive "Red Nugget."
This paper presents a semi-analytical framework demonstrating that resonant Compton scattering in magnetar magnetospheres, driven by magnetic twist and plasma drift velocity, can significantly alter soft X-ray polarization signatures by either suppressing vacuum resonance-induced polarization angle swings or introducing new relativistic $90^\circ$ swings, thereby offering an efficient alternative to complex Monte Carlo simulations for interpreting data from X-ray polarization missions.