960 papers
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.
This review traces the evolution of understanding s-process nucleosynthesis in low-mass AGB stars from early nuclear systematics to modern stellar modeling, highlighting how observational constraints necessitated a shift from the high-temperature Ne(,n)Mg neutron source to the low-temperature C(,n)O reaction as the primary mechanism for synthesizing elements between Sr and Pb.
One hundred years after Bernard Lyot's pioneering work, the PICSARR project presents new high-precision polarimetric observations of Venus that confirm historical particle size models while revealing significant short-term variability and distinct ultraviolet polarization anomalies in the polar regions, suggesting lower cloud tops and a larger Rayleigh scattering component compared to equatorial areas.
This study demonstrates that incorporating the comprehensive CRAHCN-O chemical network into photochemical simulations reveals that hydrocarbon photochemical shielding significantly enhances the production of key prebiotic feedstock molecules like HCN in M-star irradiated exoplanet atmospheres compared to simpler networks, highlighting the critical importance of detailed chemical kinetics in modeling prebiotic potential.
This paper reports the discovery of ASASSN-25dc, a candidate period bouncer dwarf nova exhibiting unusual outburst characteristics and a low mass ratio that challenge existing superoutburst models by suggesting an inside-out outburst mechanism in a massive disc lacking the expected 2:1 tidal resonance.
The paper proposes that the most luminous hyper-soft X-ray sources originate from accretion onto a binary black hole within a hierarchical triple system, where a circumbinary disc fed by a high-rate donor explains the observed properties.
This study employs 2D particle-in-cell simulations to demonstrate that continuous compression in magnetically arrested disk plasmas drives pressure anisotropy and triggers kinetic instabilities like the ion cyclotron and mirror modes, which regulate anisotropies and generate nonthermal energy spectra in ways that depend critically on plasma beta, temperature, and compression rates, thereby providing essential constraints for global fluid models of black hole accretion.
This paper proposes that a reaction-diffusion model featuring a moving reaction front driven by protostellar outflows explains the observed evolutionary transition of young stellar disks from structureless Class 0 systems to ring-gap structured Class II systems.
This study utilizes the BEST database to independently validate and re-calibrate the Stetson standard star photometry, correcting significant spatially dependent systematic errors to achieve field-to-field zero-point precisions of 2–4 mmag and sub-10 mmag agreement for individual stars in the BVRI bands.
This paper demonstrates that the hidden symmetry and separability characteristic of Kerr geometry are inevitable local consequences of the Einstein equations for rotating spacetimes, emerging from a rigid projective alignment enforced by mixed field equations under a minimal local equilibrium condition without requiring vacuum, algebraic speciality, or global boundary assumptions.
This paper proposes that long-period transients like GLEAM-X J1627-5235 are isolated, massive, highly magnetized white dwarf pulsars formed via double white dwarf mergers, a model that successfully explains their observed rotational periods and lack of optical counterparts.
This paper addresses the biases in traditional ellipticity measurements of globular clusters by developing and validating a robust method using ground-based and space-based photometry, which reveals that rotation is the primary driver of flattening in ten specific Galactic clusters while also highlighting the roles of velocity anisotropy and tides.
This study utilizes 3D magnetohydrodynamic simulations to demonstrate that the structure and mechanical feedback of massive star cluster winds are determined by the surrounding cavity's density and pressure, enabling a novel, computationally efficient method to model wind termination shocks across different cluster ages and validate them with a semi-analytical approach.
This paper analyzes the eclipsing double low-mass white dwarf system J2102–4145 to demonstrate that its components formed via distinct evolutionary pathways—stable Roche-lobe overflow for the primary and extreme common-envelope mass loss for the secondary—thereby providing a stringent observational constraint on hydrogen-envelope retention and challenging current theoretical models of envelope ejection.