12–23 Jul 2021
Online
Europe/Berlin timezone

Lepton-driven Non-resonant Streaming Instabilities

16 Jul 2021, 12:00
1h 30m
03

03

Talk CRI | Cosmic Ray Indirect Discussion

Speaker

Siddhartha Gupta (University of Chicago)

Description

Using fully-kinetic plasma simulations, we study the non-resonant (Bell) streaming instability driven by energetic leptons. We identify the necessary conditions to drive the Bell instability and the differences from the standard proton-driven case in both linear and saturated stages. A simple analytic theory is presented to explain simulations. Our findings are crucial for understanding the phenomenology of astrophysical environments where only electrons may be accelerated (e.g., oblique shocks) or where relativistic pairs are produced (e.g., around pulsar wind nebulae).

Subcategory Theoretical Results

Primary authors

Siddhartha Gupta (University of Chicago) Damiano Caprioli (University of Chicago) Colby Haggerty (Institute for Astronomy, University of Hawaii)

Presentation materials