3 papers
astro-ph.SR2026
Lithium in Wide Binaries: Effective Temperature Governs Depletion while Rotation Plays a Minor Role
Cheng-Cheng Xie, Hai-Jun Tian, Jian-Rong Shi +1
Using a sample of 116 wide binary systems as coeval and chemically homogeneous stellar pairs, we investigate the factors governing lithium depletion in main-sequence stars. We reco…
astro-ph.GA2026
Galactic Stellar Halo Luminosity Function
Sarah A. Bird, Chris Flynn, Rudra Sekhri +5
We measure the luminosity function (LF) of the Milky Way's stellar halo, using a magnitude complete, distance limited sample of stars from DR3. Stars with high transverse ve…
astro-ph.IM2025
Toward High-Precision Astrometry with CSST Using Multi-Gaussian Fitting of PSF
Jialu Nie, Peng Wei, Zihuang Cao +5
The Chinese Space Station Survey Telescope (CSST) presents significant potential for high-precision astrometry. In this study, we show that the point spread function (PSF) modeled…