Proton core-beam system in the expanding solar wind: Hybrid simulations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F11%3A00373443" target="_blank" >RIV/67985815:_____/11:00373443 - isvavai.cz</a>
Alternative codes found
RIV/68378289:_____/11:00373443
Result on the web
<a href="http://www.agu.org/pubs/crossref/2011/2011JA016940.shtml" target="_blank" >http://www.agu.org/pubs/crossref/2011/2011JA016940.shtml</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2011JA016940" target="_blank" >10.1029/2011JA016940</a>

Result language
angličtina
Original language name
Proton core-beam system in the expanding solar wind: Hybrid simulations
Original language description
Results of a two-dimensional hybrid expanding box simulation of a proton beam-core system in the solar wind are presented. The expansion with a strictly radial magnetic field leads to a decrease of the ratio between the proton perpendicular and paralleltemperatures as well as to an increase of the ratio between the beam-core differential velocity and the local Alfven velocity creating a free energy for many different instabilities. The system is indeed most of the time marginally stable with respect tothe parallel magnetosonic, oblique Alfven, proton cyclotron and parallel fire hose instabilities which determine the system evolution counteracting some effects of the expansion and interacting with each other. Nonlinear evolution of these instabilitiesleads to large modifications of the proton velocity distribution function. The beam and core protons are slowed with respect to each other and heated, and at later stages of the evolution the two populations are not clearly distinguishab
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Project
<a href="/en/project/IAA300420702" target="_blank" >IAA300420702: Kinetic processes in the solar wind</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
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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