The Cosmic Evolution and Spatial Distribution of Multiphase Gas Associated with QSOs

The Cosmic Evolution and Spatial Distribution of Multiphase Gas Associated with QSOs

We investigate the multiphase gas surrounding QSOs traced by 33 absorption lines (e.g., Ly α , C iv , Fe ii , Mg ii , etc.) in the stacked spectra of background sources, using the Early Data Release from the Dark Energy Spectroscopic Instrument. Our analysis reveals that the equivalent width ( W ) o...

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Bibliographic Details
Main Authors: Zeyu Chen, Enci Wang, Hu Zou, Haoran Yu, Zhicheng He, Huiyuan Wang, Yang Gao, Cheqiu Lyu, Cheng Jia, Chengyu Ma, Weiyu Ding, Runyu Zhu, Xu Kong
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal Letters
Subjects:
Quasar absorption line spectroscopy
Circumgalactic medium
Intergalactic medium
Cosmic abundances
Online Access:https://doi.org/10.3847/2041-8213/ade545
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https://doi.org/10.3847/2041-8213/ade545

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