The FAST H i 21 cm Absorption Blind Survey. II. Statistical Exploration for Associated and Intervening Systems

The FAST H i 21 cm Absorption Blind Survey. II. Statistical Exploration for Associated and Intervening Systems

We present an extragalactic H i 21 cm absorption lines catalog from a blind search at z ≤ 0.35, using drift-scan data collected in 1325.6 hr by the ongoing Commensal Radio Astronomy Fast Survey and FAST All Sky H i Survey, which spans a sky area of 6072.0 deg ^2 and covers 84,533 radio sources with...

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Main Authors: Wenkai Hu, Yougang Wang, Yichao Li, Wenxiu Yang, Yidong Xu, Fengquan Wu, Ue-Li Pen, Jie Wang, Yingjie Jing, Chen Xu, Qingze Chen, Zheng Zheng, Di Li, Ming Zhu, Xin Zhang, Xuelei Chen
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal Supplement Series
Subjects:
Galaxy evolution
Galaxy spectroscopy
Extragalactic radio sources
Interstellar line absorption
Online Access:https://doi.org/10.3847/1538-4365/adb0c0
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https://doi.org/10.3847/1538-4365/adb0c0

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