Plasma Beta Dependence of the Ion-scale Spectral Break of Solar Wind Turbulence: High-resolution 2D Hybrid Simulations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00471448" target="_blank" >RIV/67985815:_____/16:00471448 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.3847/1538-4357/833/1/91" target="_blank" >http://dx.doi.org/10.3847/1538-4357/833/1/91</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3847/1538-4357/833/1/91" target="_blank" >10.3847/1538-4357/833/1/91</a>

Result language

angličtina

Original language name

Plasma Beta Dependence of the Ion-scale Spectral Break of Solar Wind Turbulence: High-resolution 2D Hybrid Simulations

Original language description

e investigate properties of the ion-scale spectral break of solar wind turbulence by means of two-dimensional high-resolution hybrid particle-in-cell simulations. We impose an initial ambient magnetic field perpendicular to the simulation box and add a spectrum of in-plane, large-scale, magnetic and kinetic fluctuations. We perform a set of simulations with different values of the plasma beta, distributed over three orders of magnitude, from 0.01 to 10. In all. cases, once turbulence is fully developed, we observe a power-law spectrum of the fluctuating magnetic field on large scales (in the inertial range) with a spectral index close to -5/3, while in the sub-ion range we observe another power-law spectrum with a spectral index systematically varying with beta (from around -3.6 for small values to around -2.9 for large ones).

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

2016

Confidentiality

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

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Volume of the periodical

833

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

"91/1"-"91/7"

UT code for WoS article

000390792000003

EID of the result in the Scopus database

2-s2.0-85006761864