NEI Modelling of the ISM - Turbulent Dissipation & Hausdorff Dimension

TL;DR

This paper presents high-resolution non-ideal MHD simulations of the turbulent ISM, incorporating NEI effects, to analyze turbulence scales, self-similarity, and fractal dimensions of dissipative structures.

Contribution

It introduces detailed NEI-inclusive simulations of the turbulent ISM across multiple scales, revealing insights into turbulence dissipation and structure.

Findings

Determined the injection scale of turbulence.

Analyzed extended self-similarity in the ISM.

Measured the Hausdorff dimension of dissipative structures.

Abstract

High-resolution non-ideal magnetohydrodynamical simulations of the turbulent magnetized ISM, powered by supernovae types Ia and II at Galactic rate, including self-gravity and non-equilibriuim ionization (NEI), taking into account the time evolution of the ionization structure of H, He, C, N, O, Ne, Mg, Si, S and Fe, were carried out. These runs cover a wide range (from kpc to sub-parsec) of scales, providing resolution independent information on the injection scale, extended self-similarity and the fractal dmension of the most dissipative structures.