Chemical Components in the Virgo Overdensity and Hercules–Aquila Cloud: Hints of More than One Merger Event in GSE-like Debris

Chemical Components in the Virgo Overdensity and Hercules–Aquila Cloud: Hints of More than One Merger Event in GSE-like Debris

Using elemental abundances for 1.26 million K giants in the Large Sky Area Multi-Object Fiber Spectroscopic Telescope DR8 value-added catalog, we analyze the chemical abundances of the Virgo Overdensity and Hercules–Aquila Cloud. We find two distinct chemical populations in both overdensities, which...

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Bibliographic Details
Main Authors: Haoyang Liu, Cuihua Du, Thomas Donlon II, Mingji Deng
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
Subjects:
Galaxy stellar halos
Galaxy kinematics
Galaxy dynamics
Chemical abundances
Online Access:https://doi.org/10.3847/1538-4357/adc8a8
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