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FASHI DR2: A Catalog of 132 Low-redshift H I 21 cm Absorption Systems

  • Authors: Chuan-Peng Zhang, Ming Zhu, Peng Jiang, Hong Guo, Yizhou Gu, Cheng Cheng, Jin-Long Xu, Nai-Ping Yu, Xiao-Lan Liu, Bo Zhang

Chuan-Peng Zhang et al 2026 The Astrophysical Journal Supplement Series 287 .

  • Provider: AAS Journals

Caption: Figure 7.

Distribution of the H I line width W50 as a function of the axial ratio Q = b/a. Most data points cluster around Q ≈ 0.6–0.7, and the sources with larger W50 are also predominantly located in this same range of Q.

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