The proton distribution function in weakly magnetized turbulent plasmas

Andrei Gruzinov; Eliot Quataert

doi:10.1086/307472

The proton distribution function in weakly magnetized turbulent plasmas

Andrei Gruzinov, Eliot Quataert

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

8 Scopus citations

Abstract

We calculate the proton distribution function due to heating by subsonic, Alfvénic turbulence in a weakly magnetized collisionless plasma. The distribution function is nonthermal. For nonrelativistic energies it is an exponential of the magnitude of the proton velocity. For ultrarelativistic energies, it can be characterized as a power law with a momentum-dependent slope. We briefly discuss the implications of this work for gamma-ray emission (via pion decay) from hot accretion flows.

Original language	English (US)
Pages (from-to)	849-852
Number of pages	4
Journal	Astrophysical Journal
Volume	520
Issue number	2 PART 1
DOIs	https://doi.org/10.1086/307472
State	Published - Aug 1 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

MHD
Plasmas
Turbulence

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10.1086/307472

Cite this

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title = "The proton distribution function in weakly magnetized turbulent plasmas",

abstract = "We calculate the proton distribution function due to heating by subsonic, Alfv{\'e}nic turbulence in a weakly magnetized collisionless plasma. The distribution function is nonthermal. For nonrelativistic energies it is an exponential of the magnitude of the proton velocity. For ultrarelativistic energies, it can be characterized as a power law with a momentum-dependent slope. We briefly discuss the implications of this work for gamma-ray emission (via pion decay) from hot accretion flows.",

keywords = "MHD, Plasmas, Turbulence",

author = "Andrei Gruzinov and Eliot Quataert",

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AU - Gruzinov, Andrei

AU - Quataert, Eliot

PY - 1999/8/1

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N2 - We calculate the proton distribution function due to heating by subsonic, Alfvénic turbulence in a weakly magnetized collisionless plasma. The distribution function is nonthermal. For nonrelativistic energies it is an exponential of the magnitude of the proton velocity. For ultrarelativistic energies, it can be characterized as a power law with a momentum-dependent slope. We briefly discuss the implications of this work for gamma-ray emission (via pion decay) from hot accretion flows.

AB - We calculate the proton distribution function due to heating by subsonic, Alfvénic turbulence in a weakly magnetized collisionless plasma. The distribution function is nonthermal. For nonrelativistic energies it is an exponential of the magnitude of the proton velocity. For ultrarelativistic energies, it can be characterized as a power law with a momentum-dependent slope. We briefly discuss the implications of this work for gamma-ray emission (via pion decay) from hot accretion flows.

KW - MHD

KW - Plasmas

KW - Turbulence

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UR - http://www.scopus.com/inward/citedby.url?scp=0033441042&partnerID=8YFLogxK

U2 - 10.1086/307472

DO - 10.1086/307472

M3 - Article

AN - SCOPUS:0033441042

SN - 0004-637X

VL - 520

SP - 849

EP - 852

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 1

ER -

The proton distribution function in weakly magnetized turbulent plasmas

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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