activity
20232026
most citedCandidate Members of the VMP/EMP Disk System of the Galaxy from the SkyMapper and SAGES Surveys

19 citations · 21 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.GA2026★ 1 cited

Carbon-Enhanced Metal-Poor Star Candidates in the Milky Way from J-PLUS and S-PLUS

Jihye Hong, Timothy C. Beers, Yang Huang +4

Recent large-scale multi-band photometric surveys now enable elemental-abundance estimates for millions of stars with accuracies approaching those of low- to medium-resolution spec…

astro-ph.GA2025

A Metallicity Catalog of Very Metal-poor Main-sequence Turn-off and Red Giant Stars from LAMOST DR10

Xiangyu Li, Huiling Chen, Yang Huang +4

We present a catalog of 8,440 candidate very metal-poor (VMP; [Fe/H] < -2.0) main-sequence turn-off (MSTO) and red giant stars in the Milky Way, identified from low-resolution spec…

astro-ph.SR2025

Metallicities of 20 Million Giant Stars Based on Gaia XP spectra

Lin Yang, Haibo Yuan, Bowen Huang +8

We design an uncertainty-aware cost-sensitive neural network (UA-CSNet) to estimate metallicities from dereddened and corrected Gaia BP/RP (XP) spectra for giant stars. This method…

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 for over Fifty Million stars from SMSS DR4 and Gaia DR3

Yang Huang, Timothy C. Beers

We present an updated catalog of stellar parameters, including effective temperature, luminosity classification, and metallicity, for over fifty million stars from the SkyMapper So…

astro-ph.SR2025

The Stellar Abundances and Galactic Evolution Survey (SAGES). II. Machine Learning-Based Stellar parameters for 21 million stars from the First Data Release

Hongrui Gu, Zhou Fan, Gang Zhao +14

Stellar parameters for large samples of stars play a crucial role in constraining the nature of stars and stellar populations in the Galaxy. An increasing number of medium-band pho…

astro-ph.SR2024

Photometric Stellar Parameters for 195,478 Kepler Input Catalog (KIC) Stars

Bowen Zhang, Yang Huang, Timothy C. Beers +9

The stellar atmospheric parameters and physical properties of stars in the Kepler Input Catalog (KIC) are of great significance for the study of exoplanets, stellar activity, and a…

astro-ph.SR2024

The Blue Horizontal-Branch Stars From the LAMOST Survey: Atmospheric Parameters

Jie Ju, Bo Zhang, Wenyuan Cui +4

Blue horizontal-branch (BHB) stars are crucial for studying the structure of the Galactic halo. Accurate atmospheric parameters of BHB stars are essential for investigating the for…

astro-ph.GA2024

The Stellar Abundances and Galactic Evolution Survey (SAGES) III -- The g/r/i-band Data Release

Chun Li, Zhou Fan, Gang Zhao +15

The Stellar Abundances and Galactic Evolution Survey (SAGES) is a multi-band survey that covers the northern sky area of ~12000 deg2. Nanshan One-meter Wide-field Telescope (NOWT)…

astro-ph.SR2024

Filter Design for Estimation of Stellar Metallicity: Insights from Experiments with Gaia XP Spectra

Kai Xiao, Bowen Huang, Yang Huang +11

We search for an optimal filter design for the estimation of stellar metallicity, based on synthetic photometry from Gaia XP spectra convolved with a series of filter-transmission…

astro-ph.SR2023★ 1 cited

Stellar Loci. VII. Photometric Metallicities of 5 Million FGK Stars Based on GALEX GR6+7 AIS and Gaia EDR3

Xue Lu, Haibo Yuan, Shuai Xu +5

We combine photometric data from GALEX GR6+7 AIS and Gaia EDR3 with stellar parameters from the SAGA and PASTEL catalogs to construct high-quality training samples for dwarfs ($\rm…

astro-ph.GA2023★ 19 cited

Candidate Members of the VMP/EMP Disk System of the Galaxy from the SkyMapper and SAGES Surveys

Jihye Hong, Timothy C. Beers, Young Sun Lee +15

Photometric stellar surveys now cover a large fraction of the sky, probe to fainter magnitudes than large-scale spectroscopic surveys, and are relatively free from the target-selec…