Astrophysics · Physics & Astronomy
Solar & Stellar Astrophysics
The newest papers in Solar & Stellar Astrophysics that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
233 papers, from 16 September 2026 to 5 November 2026: 233 arXiv preprints.
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Newest papers, page 8
Bridging Theory and Observation: Synthetic Far-infrared Insights into Star Formation Efficiency
The star formation efficiency per free-fall time ($ε_{\rm ff}$) quantifies how efficiently giant molecular clouds (GMCs) convert gas into stars and is often observed to be orders of magnitude lower…ASTRAL: A Framework for Optimal Placement and Emulation of Stellar Evolution Models
Generating dense grids of detailed stellar evolution simulations is computationally prohibitive, as resolving progressively complex nucleosynthesis chains and dynamical timescales incurs a rapidly…Light curve spectral energy distribution fitting of 13 carbon-rich Mira variables stars in the Small Magellanic Cloud
Carbon-rich Mira variables are highly dynamic stars characterized by large-amplitude radial pulsations and intense mass-loss.On the origin of the short-period Blue Straggler Stars in Collinder 261: a binary evolution approach
Building on the recent publication of a fresh catalog of blue straggler stars in Galactic open clusters using Gaia DR3, we conduct a study focusing on the blue straggler stars with short-period…Photometric and Spectroscopic Study of Young Stellar Objects in IC 1848E Region
We present a comprehensive analysis combining multi-epoch mid-infrared (MIR) photometric and optical spectroscopic observations of young stellar candidates associated with elongated, elephant…Kinematic and Dynamical Properties of Solar Neighborhood White Dwarfs from SDSS DR19 and Gaia DR3
We present a comprehensive kinematic and dynamical analysis of 5,837 DA white dwarfs with SDSS DR19 spectroscopy and Gaia DR3 astrometry.Global and Local Infall in the ASHES Sample (GLASHES). III. Physical Parameters of Contracting Motion onto Dense Cores in 70 $μ$m Dark Massive Clumps
Core growth is a key process in high-mass star formation.Atypical White Dwarfs in Open Clusters
Open clusters are powerful laboratories for investigating the formation and evolution of white dwarfs (WDs), as their well-constrained ages link WDs to their progenitor stars.Population II Post-AGB Stars. I. Methodology, Initial Results, and the First Luminosity Function
Post-asymptotic giant branch (PAGB) stars share many advantages with the tip of the red giant branch (TRGB) for Population II distance measurements, including minimal internal reddening, easy…NGC 6426: Colour-Magnitude diagram and variable star population as indicators of metallicity, distance, and age
We present new VI CCD photometry of the globular cluster NGC 6426.COSMOS-3D: Spectro-photometric Confirmation of Shabgard, a Cool, Metal-poor Brown Dwarf in the COSMOS Field
Brown dwarfs are unique laboratories for studying cool atmospheres, the low-mass end of star formation, and the transition between stars and giant planets.Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) II. Approach to data reduction and products for line-rich broadband (sub)millimeter spectra
Studying the chemical composition of the warm gas surrounding embedded solar-type protostars is one of the areas for which the Atacama Large Millimeter/submillimeter Array (ALMA) is particularly…Extreme Stellar Death and Galaxy Feedback at z = 2: A Rest-frame Ultraviolet Characterization of the Strongly Lensed Superluminous Supernova 2025wny
We present photometric and spectroscopic follow-up observations of the strongly-lensed H-poor superluminous supernova (SLSN) 2025wny at $z = 2.0155$.Re-calibrated analytic stellar evolution formulae for the main sequence: Extension to massive stars and variations in $[α/\mathrm{Fe}]$
Analytic formulae are an efficient way to approximate the evolution of a star of a given mass and chemical composition, and are widely used in the literature to compute large grids of evolutionary…Unravelling the Nature of AT 2025abao: From Precursor to Final Fate
Luminous red novae (LRNe) are potential signatures of common envelope evolution (CEE), a critical yet poorly understood phase in compact binary formation.From the Milky Way to the Early Universe: How Metallicity Shapes the Formation of Double Neutron Stars
Among the compact binaries detected through gravitational wave (GW) emission, double neutron stars (DNSs) hold the unique distinction of having well-characterized local analogs in the Milky Way.Linking simulations and observations of star-forming regions I. Masses and temperatures of ALMAGAL-like cores
Dense cores and clumps in massive star-forming regions are studied through (sub-)millimetre continuum observations, but inferred masses and temperatures can be biased by limited resolution…Detection of knots in the supernova type Iax remnant Pa 30
We present deep, narrowband Gemini North/GMOS images of the Pa 30 nebula that reveal rich small-scale structure in the ejecta filaments.Armillary: A Label-Free Coordinate System for Stellar Spectra
A stellar spectrum is determined by a few parameters, so a set of spectra lies on a low-dimensional manifold with those parameters as its coordinates.Cracking open the "dragon egg": ALMA 1.3mm observations of a compact, young high-mass core candidate at 30mas resolution
Massive prestellar cores are a central assumption of core-accretion models of high-mass star formation, yet convincing observational examples remain rare.