271 papers
This study utilizes rotational broadening measurements from LAMOST spectra to determine orbital inclinations and companion masses for ten compact object candidates, revealing five systems with unseen companions likely to be neutron stars or massive white dwarfs, including two potential Type Ia supernova progenitors.
Using follow-up timing observations from the FAST telescope, this study determines that the pulsar PSR J0630+19 is too old and lacks sufficient spin-down luminosity to power the very-high-energy gamma-ray emissions of the source 3HWC J0630+186, thereby ruling out an association between them.
This paper reports the detection of high-energy gamma-ray emission up to 100 GeV from a stacked sample of 330 gamma-ray bursts using Fermi-LAT data, revealing that while individually detected bursts align with standard afterglow models, individually undetected bursts suggest the presence of a previously unobserved energy injection effect in the GeV band.
This paper investigates the dynamical behavior of steady spherical accretion and thin accretion disks around a magnetically charged black hole embedded in perfect fluid dark matter, using M87* shadow observations to constrain parameters and revealing that while local radiative flux and temperature are reduced, the overall radiative efficiency and luminosity are enhanced compared to a Schwarzschild black hole.
This paper presents a time-dependent photospheric radiative transfer model coupling 2D SRHD simulations with Monte Carlo photon propagation to demonstrate how jet angular structure, pair loading, and dissipation depth jointly regulate the spectral evolution and polarization signatures of gamma-ray bursts, offering testable predictions for high-energy polarimeters.
This study utilizes simultaneous NuSTAR, NICER, and Insight-HXMT observations of GX 339-4's 2021 outburst to demonstrate that incorporating a warm Comptonization component in the hard state resolves discrepancies in disk normalization, thereby supporting a dual-corona accretion geometry where the disk is physically truncated and cooler compared to the soft state.
By analyzing a sample of 241 Swift long gamma-ray bursts, this study demonstrates that the Amati and Yonetoku relations exhibit no significant redshift evolution and actually yield better fits at high redshifts, confirming their reliability as cosmological probes.
This paper predicts that the accretion-induced collapse of magnetized white dwarfs produces distinctive gamma-ray signatures from both r-process and iron-peak nuclei, which planned MeV gamma-ray telescopes could detect out to distances of approximately 30 Mpc, thereby offering a unique observational method to distinguish these events from binary neutron star mergers.
This paper presents an improved low-energy atmospheric neutrino flux calculation for Super-Kamiokande analysis that incorporates accelerator-data-driven hadron interaction tuning, resulting in a 5–10% lower flux prediction with reduced and more directly evaluable uncertainties (7–9% below 1 GeV and 5–7% between 1–10 GeV) compared to conventional methods.
Using 3D neutrino-magnetohydrodynamic simulations of a magnetorotational collapse, this study reveals that neutrino flavor conversion is driven by both matter effects and magnetic interactions, leading to significant orientation-dependent event rates at neutrino telescopes that are crucial for interpreting joint neutrino and gravitational wave detections.
This paper proposes a method to significantly improve constraints on axion-like particles by utilizing cosmic variance cancellation with multi-frequency tracers from the Simons Observatory and the Square Kilometre Array to detect CMB photon-ALP resonant conversion in galaxy clusters.
This paper analyzes LIGO-Virgo-KAGRA observations from 2015 to early 2024 to demonstrate that the binary black hole population is best explained by a combination of first-generation stellar remnants, hierarchical merger products, and potentially primordial black holes, rather than solely by the collapse of massive stars.
This paper proposes a novel method to constrain feebly-interacting particles by analyzing the heating and ionization of circumstellar medium around core-collapse supernovae, using non-detections of precursor emission from SN 2023ixf to establish stringent new limits on MeV-scale dark photons.
This paper investigates axion-neutrino interactions within Type-I and inverse seesaw models, finding that while the effective coupling is constrained by astrophysical limits on axion-electron couplings, the resulting optical depths for axion-mediated neutrino scattering are too small to produce observable signatures with current sensitivities.
This paper demonstrates that gravitational interactions between dark matter particles and binary systems, particularly double black holes, can significantly boost dark matter velocities to , thereby enabling large noble liquid detectors like LZ and PandaX-4T to achieve competitive sensitivity to sub-GeV dark matter through a model-independent mechanism.
This paper proposes that spinning black holes in the Milky Way can act as persistent "scalar sirens" by ejecting light scalar particles via superradiant instability, thereby generating a detectable, high-velocity scalar background that offers a novel, independent probe of isolated black hole populations and scalar field properties.
This paper demonstrates how introductory physics students can use thermodynamic principles, specifically the analogy between black hole area and entropy, to derive bounds on energy emitted during black hole mergers and understand how these concepts are applied in modern gravitational wave research.
This paper utilizes 2D3V PIC simulations to demonstrate that in freely decaying sub-ion turbulence, intermittent regions with non-zero drive helicity reduction, motivating a new history-dependent helicity density that reveals time-invariant intermediate-scale plateaus consistent with kinetic decay constraints.
This paper proposes a novel solution to the hyperon puzzle by using the Dyson-Schwinger equation approach to incorporate quantum many-body effects, resulting in a stiff equation of state that supports neutron stars up to 2.59 solar masses while suppressing rapid cooling mechanisms.
This paper demonstrates that while gravitational wave dephasing caused by gas accretion in massive black hole binaries will likely bias the inference of other LISA signals due to imperfect vacuum-template subtraction, the resulting residual is unlikely to be confidently distinguished from instrumental noise as a stochastic signal.