Network of velocity-coherent filaments formed by supersonic turbulence in a very-high-velocity HI cloud

2025/02/15 by Liu, Xunchuan, Liu, Tie, Li, Pak-Shing +17
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR)

paper · doi:10.48550/arxiv.2502.10897

Abstract

The warm neutral medium (WNM) was thought to be subsonically/transonically turbulent, and it lacks a network of intertwined filaments that are commonly seen in both molecular clouds and cold neutral medium (CNM). Here, we report HI~21 cm line observations of a very-high-velocity (-330 km s^-1

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