Collisionless tearing instability in a relativistic pair plasma with a power-law distribution function

I. Demidov; Y. Lyubarsky

doi:10.1017/S0022377824000904

Collisionless tearing instability in a relativistic pair plasma with a power-law distribution function

I. Demidov, Y. Lyubarsky

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We study the tearing instability of a current sheet in a relativistic pair plasma with a power-law distribution function. We first estimate the growth rate analytically and then confirm the analytical results by solving numerically the dispersion equation, taking into account all exact particle trajectories within the reconnecting layer. We found that the instability is suppressed when the particle spectrum becomes harder.

Original language	English
Article number	905900619
Journal	Journal of Plasma Physics
Volume	90
Issue number	6
DOIs	https://doi.org/10.1017/S0022377824000904
State	Published - 20 Dec 2024

Keywords

astrophysical plasmas
plasma instabilities

ASJC Scopus subject areas

Condensed Matter Physics

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10.1017/S0022377824000904

Cite this

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title = "Collisionless tearing instability in a relativistic pair plasma with a power-law distribution function",

abstract = "We study the tearing instability of a current sheet in a relativistic pair plasma with a power-law distribution function. We first estimate the growth rate analytically and then confirm the analytical results by solving numerically the dispersion equation, taking into account all exact particle trajectories within the reconnecting layer. We found that the instability is suppressed when the particle spectrum becomes harder.",

keywords = "astrophysical plasmas, plasma instabilities",

author = "I. Demidov and Y. Lyubarsky",

note = "Publisher Copyright: Copyright {\textcopyright} The Author(s), 2024. Published by Cambridge University Press.",

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AU - Lyubarsky, Y.

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N2 - We study the tearing instability of a current sheet in a relativistic pair plasma with a power-law distribution function. We first estimate the growth rate analytically and then confirm the analytical results by solving numerically the dispersion equation, taking into account all exact particle trajectories within the reconnecting layer. We found that the instability is suppressed when the particle spectrum becomes harder.

AB - We study the tearing instability of a current sheet in a relativistic pair plasma with a power-law distribution function. We first estimate the growth rate analytically and then confirm the analytical results by solving numerically the dispersion equation, taking into account all exact particle trajectories within the reconnecting layer. We found that the instability is suppressed when the particle spectrum becomes harder.

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KW - plasma instabilities

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M3 - Article

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Collisionless tearing instability in a relativistic pair plasma with a power-law distribution function

Abstract

Keywords

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