On the structure of the interstellar atomic gas

TL;DR

This paper presents high-resolution simulations of interstellar atomic hydrogen, revealing small-scale structures caused by turbulence and 2-phase physics, spanning from tens of parsecs to hundreds of AU.

Contribution

It provides detailed numerical insights into the small-scale structures of interstellar atomic gas driven by turbulence and phase physics.

Findings

Identification of small-scale structures in atomic hydrogen

Demonstration of turbulence's role in structure formation

High-resolution simulation data covering a wide range of scales

Abstract

The interstellar atomic hydrogen is known to be a 2-phase medium in which turbul ence plays an important r\^ole. Here we present high resolution numerical simulations describing the gas from tens of parsec down to hundreds of AU. This high resolut ion allows to probe numerically, the small scale structures which naturally arises from the turbulence and the 2-phase physics.