Hybrid simulations of the expanding solar wind: Temperatures and drift velocities.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F03%3A04033538" target="_blank" >RIV/68378289:_____/03:04033538 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Hybrid simulations of the expanding solar wind: Temperatures and drift velocities.

Original language description

In this paper we study the evolution of the expanding solar wind plasma using a one-dimensional and a two-dimensional expanding box model (Grappin et al, 1993) implemented here within a hybrid code (Liewer et al, 2001). We first consider a plasma with protons and 5 % of alpha particles, without drift between the protons and alphas, considering successively the low-beta and high-beta cases. Then we consider a strong drift between protons and alphas, again separately the low-beta and high-beta case. Without drift, the evolution of the low-beta plasma is adiabatic. In the high-beta plasma without drift, the fire hose instabilites (both parallel and oblique) disrupt the adiabatic evolution. Finally, with a drift, the adiabatic evolution is stopped by the oblique Alfv'en instability and the parallel magnetosonic instability for low-beta plasma and for high-beta plasma, respectively. The two instabilities slow down the alphas and heat alphas and protons.

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

DG - Atmospheric sciences, meteorology

OECD FORD branch

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Project

<a href="/en/project/IAB3042106" target="_blank" >IAB3042106: Numerical simulations of nonlinear processes in space plasmas</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Name of the periodical

Geophysical research letters

ISSN

0094-8276

e-ISSN

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Volume of the periodical

30

Issue of the periodical within the volume

5

Country of publishing house

US - UNITED STATES

Number of pages

4

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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