1088 papers
Using the Green Bank and Parkes radio telescopes, researchers discovered and characterized the first millisecond pulsar, PSR J17162808A, in the globular cluster NGC 6316, confirming its cluster membership through timing analysis despite a lower-than-expected dispersion measure and suggesting that deeper searches could reveal many more pulsars consistent with the cluster's gamma-ray emission.
This paper establishes a tight relation between the baryonic mass and dynamical mass of extragalactic systems across nine orders of magnitude, revealing that the baryon fraction matches the cosmic value in massive clusters but decreases systematically in lower-mass systems according to a specific tanh-based scaling law.
The Galaxy UV Legacy Project (GULP) presents a new Hubble Space Telescope survey of 26 nearby galaxies that, through a detailed case study of NGC 4449, reveals a recent southwestward migration of star formation and demonstrates that intense UV radiation from massive stars destroys the dust grains responsible for the 2175 Å UV-bump.
By integrating kinetic modeling with RHESSI and Solar Orbiter/STIX X-ray observations of three large flares, this study constrains solar flare acceleration properties, revealing that extended turbulent regions covering approximately 25% of the flare loop and acceleration timescales between 7 and 22 seconds are required to match observed data.
This paper introduces PEACOCK, a unified Monte Carlo radiative transfer framework accelerated by deep learning, which analyzes 50 nearby star-forming galaxies to reveal that their multiphase galactic winds are kinematically coherent and driven by macroscopic turbulence rather than purely radial acceleration, while showing distinct kinematic structures between neutral hydrogen and metal ions.
This paper introduces the first application of the Uniform Manifold Approximation and Projection (UMAP) algorithm to the GWTC-3 binary black hole catalog, demonstrating that this model-independent, non-parametric technique effectively identifies distinct astrophysical subpopulations and formation pathways based on mass and spin characteristics.
By applying the PEACOCK multi-ion radiative transfer framework to 50 nearby star-forming galaxies, this study reveals that turbulence often dominates the kinetic energy budget of galactic winds and strengthens the coupling between stellar feedback and the circumgalactic medium, supporting a turbulence-regulated picture of multiphase outflows.
JWST NIRSpec observations of the warm super-Earth GJ 486b reveal a transmission spectrum that is either indicative of a water-rich atmosphere or contaminated by stellar activity, a degeneracy that requires shorter-wavelength data to resolve.
This paper presents an unbiased method for mapping particles to distribution functions that unifies Boltzmann's and Gibbs' paradigms to derive the principle of maximum entropy, enabling a rigorous statistical mechanical treatment of self-gravitating systems through the decoupling of time and ensemble averages.
This paper presents a measurement of the SDSS galaxy bispectrum across various triangle sizes and shapes, finding it well-described by a power law that is accurately modeled by CDM N-body simulations with a bias of 1.2, while revealing that red galaxies exhibit significantly higher bispectrum amplitudes than blue galaxies due to their stronger clustering and non-linear evolutionary interactions.
This paper forecasts that cross-correlating thermal Sunyaev-Zel'dovich fluctuations from the Planck satellite with 21 cm intensity mapping data from the FAST telescope will significantly constrain the cosmic neutral hydrogen density, hydrostatic mass bias, and universal pressure profile parameters, thereby probing the distribution of neutral hydrogen within low-redshift galaxy clusters.
This paper presents DESI Data Release 1, the largest sample of extragalactic redshifts ever assembled, comprising 18.7 million objects from the first 13 months of the survey to enable precise cosmological constraints and diverse astrophysical discoveries.
This study presents the first broadband spectral and timing analysis of the Be/X-ray pulsar SXP31.0 during its 2025 giant outburst, revealing a transient 0.8-mHz quasi-periodic oscillation at super-Eddington luminosities that coincides with low soft X-ray pulsed fractions and disappears alongside subsequent timing transitions.
This study utilizes Gaia DR3 astrometry and APOGEE metallicities to construct a comprehensive membership catalog of the Sagittarius dwarf spheroidal galaxy core and Messier 54, revealing a precise 2% distance measurement that confirms their spatial co-location and provides evidence for an infall scenario.
This paper proposes SEMD, a deep learning model based on Vision Transformers that integrates Squeeze-and-Excitation mechanisms and multilayer perceptrons to efficiently and robustly identify strongly lensed gravitational wave events by analyzing morphological similarities in time-frequency spectrograms, thereby overcoming the computational limitations of traditional Bayesian inference methods.
Using the Parkes Pulsar Timing Array's third data release, this study fails to confirm the supermassive black hole binary candidate in 3C 66B, instead establishing upper limits that partially rule out electromagnetic parameter estimates while proposing a new joint likelihood framework for multimessenger analysis and standard siren applications.
This study presents the first systematic analysis of explosive dispersal outflows (EDOs) using 16 years of Fermi-LAT data, revealing that three of seven observed systems, particularly the bright source DR21, emit GeV gamma rays with cosmic-ray acceleration efficiencies consistent with shocks in dense molecular environments, suggesting EDOs may contribute to the Galactic cosmic-ray budget.
This study analyzes the sub-hour spectral evolution of the 2013 Mrk 421 outburst, revealing simultaneous X-ray and VHE hysteresis loops that are best explained by a time-dependent leptonic model involving shock acceleration in a stationary jet feature, despite requiring a jet Lorentz factor higher than current VLBI measurements.
The paper outlines the scientific objectives of the upcoming XSMT-15m, a world-class 15-meter submillimeter telescope to be built in Qinghai, China, which aims to revolutionize understanding of galaxy evolution, interstellar medium processes, and transient phenomena through its high-altitude capabilities and advanced instrumentation.
This paper presents an end-to-end deep learning pipeline that extends the AutoSourceID method to Cherenkov Telescope Array Observatory (CTAO) simulated data, offering a versatile framework for the detection, localization, and characterization of gamma-ray sources as a step toward a foundational model for astrophysical source detection.