Environmental limits on the non-resonant cosmic-ray current-driven instability

TL;DR

This paper examines how environmental factors like thermal damping and ion-neutral collisions limit the growth of the non-resonant cosmic-ray streaming instability, with specific application to supernova remnants SN1006 and RX J1713.7-3946.

Contribution

It provides a detailed analysis of environmental damping effects on the non-resonant instability and establishes growth limits in specific supernova remnants.

Findings

Thermal damping significantly reduces instability growth.

Ion-neutral collisions impose upper limits on instability development.

Growth constraints vary between different supernova remnants.

Abstract

We investigate the so-called non-resonant cosmic-ray streaming instability, first discussed by Bell (2004). The extent to which thermal damping and ion-neutral collisions reduce the growth of this instability is calculated. Limits on the growth of the non-resonant mode in SN1006 and RX J1713.7-3946 are presented.