Plasma Turbulence and Kinetic Instabilities at Ion Scales in the Expanding Solar Wind

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F15%3A00452203" target="_blank" >RIV/67985815:_____/15:00452203 - isvavai.cz</a>

Alternative codes found

RIV/68378289:_____/15:00451773

Result on the web

<a href="http://dx.doi.org/10.1088/2041-8205/811/2/L32" target="_blank" >http://dx.doi.org/10.1088/2041-8205/811/2/L32</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2041-8205/811/2/L32" target="_blank" >10.1088/2041-8205/811/2/L32</a>

Result language

angličtina

Original language name

Plasma Turbulence and Kinetic Instabilities at Ion Scales in the Expanding Solar Wind

Original language description

The relationship between a decaying strong turbulence and kinetic instabilities in a slowly expanding plasma is investigated using two-dimensional (2D) hybrid expanding box simulations. We impose an initial ambient magnetic field perpendicular to the simulation box, and we start with a spectrum of large-scale, linearly polarized, random-phase Alfvenic fluctuations that have energy equipartition between kinetic and magnetic fluctuations and vanishing correlation between the two fields. A turbulent cascade rapidly develops; magnetic field fluctuations exhibit a power-law spectrum at large scales and a steeper spectrum at ion scales. The turbulent cascade leads to an overall anisotropic proton heating, protons are heated in the perpendicular direction, and, initially, also in the parallel direction. The imposed expansion leads to generation of a large parallel proton temperature anisotropy which is at later stages partly reduced by turbulence. The turbulent heating is not sufficient to ov

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

<a href="/en/project/GA15-10057S" target="_blank" >GA15-10057S: Solar wind ions: correlations, constraints, and causality</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal Letters

ISSN

2041-8205

e-ISSN

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Volume of the periodical

812

Issue of the periodical within the volume

2

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

"L32/1"-"L32/6"

UT code for WoS article

000364478600018

EID of the result in the Scopus database

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