1088 papers
This paper introduces \emph{tdanalysis}, a fully time-domain framework for gravitational-wave inference that leverages structured linear algebra and GPU acceleration to overcome the limitations of traditional frequency-domain methods while efficiently handling data gaps and sharp boundaries.
This paper analyzes radio observations of 53 tidal disruption events to constrain the circumnuclear medium density profiles of 26 quiescent supermassive black holes using closure relations, demonstrating that this method yields results consistent with equipartition estimates and is an efficient tool for studying accretion history.
This study analyzes XMM-Newton observations of the blazar OJ 287 from 2005 to 2022, revealing low-amplitude intraday variability, cospatial soft and hard X-ray emissions, and a red noise-dominated power spectrum that indicates significant contributions from both particle acceleration and synchrotron cooling mechanisms.
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.
Based on 24 years of X-ray monitoring, this study reveals that accretion-driven coupling between the disc and corona governs both the long-term spectral evolution and transient quasi-periodic oscillations in the Seyfert galaxy Mrk 530, with specific accretion rates dictating coronal geometry and thermal balance.
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.
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 presents an open-source dynamical box model to simulate global abiotic sulfur cycling on Earth-like planets, revealing that the absence of life would result in marine sediment sulfate concentrations two orders of magnitude higher and sulfide concentrations four orders of magnitude lower than on present-day Earth.
This study employs Bayesian inference within a density-dependent relativistic mean-field framework, constrained by multi-messenger data ranging from chiral effective field theory to massive pulsar observations, to reconstruct a thermodynamically consistent neutron-star equation of state that predicts a compact canonical radius of approximately 11.6 km and reveals strongly interacting matter cores with sound speeds exceeding the conformal limit.
Using the Fast Folding Algorithm and the PYSOLATOR resampling code on 272.2 hours of FAST telescope data, researchers searched for periodic radio signals from companions in 13 double neutron star systems but found no new companion signals among 197,962 candidates, despite successfully improving the detection of known pulsars.
This paper presents hand-curated size measurements and multi-wavelength characterizations of 2,002 multiple-component radio AGNs in the ROGUE I catalog, revealing how morphological classes, jet stability, and local intracluster medium conditions influence source sizes, arm-length asymmetries, and evolutionary tracks across redshifts 0.01 to 0.54.
This study demonstrates that combining mid-infrared variability metrics from WISE multi-epoch data effectively identifies active galactic nuclei, recovering about 28% of optically selected AGNs and revealing candidates in optically inactive hosts while showing minimal contamination from transient events.
This study introduces a novel machine learning method coupled with Bayesian optimization to simultaneously fit ALMA images and spectral energy distributions of protoplanetary discs, revealing that this approach yields more accurate dust mass estimates and demonstrates a significant decrease in disc scale height and flaring from Class I to Class II objects.
Using high-resolution direct N-body simulations to track neutron stars from both surviving and disrupted globular clusters, this study demonstrates that the resulting population of millisecond pulsars can fully reproduce the observed Galactic Centre gamma-ray excess, thereby favoring an astrophysical origin over dark matter annihilation.
This paper proposes and validates an autonomous star-based navigation method for deep-space missions up to 250 AU that utilizes stellar parallactic shifts to achieve sub-AU position accuracy, thereby reducing reliance on Earth-based radiometric tracking.
Using VLBI astrometry with VERA, this study measured the trigonometric parallax of the massive star-forming region IRAS 23385+6053 to determine a distance of approximately 2.17 kpc, revealing that molecular clouds in the Perseus arm at the Cepheus and Cassiopeia region extend over roughly 2 kpc.
This paper proposes that quasi-periodic oscillations observed in both radio flux and linear polarization of black hole jets are caused by kink instability, a conclusion supported by simulations that successfully reproduce the observed modulations and the anti-correlation between flux and polarization.
This study demonstrates that Ganymede's subsurface ocean circulation generates detectable magnetic signatures, up to 9 nT, which are distinguishable from the planet's intrinsic field at high spherical harmonic degrees, thereby highlighting the necessity for low-altitude orbits for the JUICE probe to observe these ocean dynamics.
By performing the first direct measurement of the ON reaction at astrophysical energies, researchers determined a thermonuclear rate approximately 1.5 times higher than standard values, thereby ruling out a previously suggested seven-fold enhancement and concluding that this reaction alone cannot explain observed calcium-to-sulphur and argon-to-sulphur ratio variations in Type Ia supernovae.
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.