activity
20242026
most citedThe Mini-SiTian Array: first-two-year operation

12 citations · 23 across the 16 of their papers we have counts for

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7 papers · 1 filter

astro-ph.SR2026

Filter Design for Estimating the Stellar Metallicity of Metal-poor Stars from Gaia XP Spectra

Ruifeng Shi, Yang Huang, Kai Xiao +5

The estimation of stellar atmospheric parameters for large-scale samples, particularly metal-poor stars, is a cornerstone of Galactic archaeology. In this work, we optimized a phot…

astro-ph.SR2025★ 1 cited

The Stellar Abundances and Galactic Evolution Survey (SAGES). IV. Surface Gravity Estimation and Giant-Dwarf Separation with the DDO51 Filter

Qiqian Zhang, Zhou Fan, Gang Zhao +16

Reliable estimation of stellar surface gravity (log ) for a large sample is crucial for evaluating stellar evolution models and understanding galactic structure; However, it is…

astro-ph.SR2025

"Frog-eyes" in Astronomy: Monitoring Binary Radial Velocity Variations Through A Pair of Narrow-Band Filters

Chuanjie Zheng, Yang Huang, Jifeng Liu +13

Spectroscopic observations are a crucial step in driving major discoveries in the era of time-domain surveys. However, the pace of current spectroscopic surveys is increasingly una…

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

J-PLUS: Beyond Spectroscopy III. Stellar Parameters and Elemental-abundance Ratios for Five Million Stars from DR3

Yang Huang, Timothy C. Beers, Kai Xiao +24

We present a catalog of stellar parameters (effective temperature , surface gravity , age, and metallicity [Fe/H]) and elemental-abundance ratios ([C/Fe], [Mg/…

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.SR2024★ 9 cited

Stellar X-ray activity and habitability revealed by ROSAT sky survey

Henggeng Han, Song Wang, Chuanjie Zheng +3

Using the homogeneous X-ray catalog from ROSAT observations, we conducted a comprehensive investigation into stellar X-ray activity-rotation relations for both single and binary st…