On MHD stability of gravitating plasmas with field aligned flows

TL;DR

This paper extends a known MHD stability condition for incompressible plasmas with field aligned flows to include self-gravitation, showing that gravity influences stability through equilibrium parameters.

Contribution

It introduces a modified stability criterion for gravitating plasmas, incorporating self-gravity effects into existing stability analysis.

Findings

Stability condition is affected by gravitation via equilibrium values.

Extension of previous stability criteria to include self-gravitation.

Gravity influences plasma stability through equilibrium parameters.

Abstract

A previous stability condition (see Throumoulopoulos and Tasso, Physics of Plasmas 14, 122104 (2007)) for incompressible plasmas with field aligned flows is extended to gravitating plasmas including self-gravitation. It turns out that the stability condition is affected by gravitation through the equilibrium values only.