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astro-ph.GA2025
Identification of BHB stars using Synthetic SkyMapper colors from Gaia XP spectra
Guozhen Hu, Yang Huang, Wenyuan Cui +9
Blue horizontal-branch (BHB) stars are ideal tracers for mapping the structure of Galactic stellar halo. Traditionally, BHB sample stars are built from large-scale spectroscopic su…
astro-ph.GA2025
Stellar parameters, extinction, and distances for stars in SMSS DR2 by SPar method
Mingxu Sun, Bingqiu Chen, Baokun Sun +8
The availability of large datasets containing stellar parameters, distances, and extinctions for stars in the Milky Way, particularly within the Galactic disk, is essential for adv…
astro-ph.GA2024
Investigating lower limit of metallicity for Galactic thin disk
Guozhen Hu, Zhengyi Shao, Erbil Gugercinoglu +1
We explore the metal-poor regime of the Galactic disk on the distribution of stars in the [/M]- plane, to identify the most metal-poor thin disk (MPTnD) stars belonging to…