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astro-ph.GA2025
Kinematic, Elemental and Structural Dependences on Metallicity in the Galactic Bulge
Haoyang Liu, Cuihua Du, Zhongcheng Li +2
We selected Bulge stars from APOGEE DR17 cross-matched with astrometric data from \textit{Gaia} DR3. Bulge stars were divided into sub-samples with line-of-sight velocity dispersio…
astro-ph.GA2025★ 1 cited
CNN-Derived Elemental Abundances of LAMOST DR10 Giants: Implications for Galactic Substructures
Haoyang Liu, Cuihua Du, Mingji Deng +1
Stellar parameters and abundances provide crucial insights into stellar and Galactic evolution studies. In this work, we developed a convolutional neural network (CNN) to estimate…
astro-ph.GA2025
Chemical Components in the Virgo Overdensity and Hercules-Aquila Cloud: hints of more than one merger event in GSE-like debris
Haoyang Liu, Cuihua Du, Thomas Donlon +1
Using elemental abundances for 1.26 million K giants in the LAMOST DR8 value-added catalog, we analyze the chemical abundances of the Virgo Overdensity (VOD) and Hercules-Aquila Cl…