Proton fire hose instabilities in the expanding solar wind

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F17%3A00484366" target="_blank" >RIV/67985815:_____/17:00484366 - isvavai.cz</a>
Alternative codes found
RIV/68378289:_____/17:00478275
Result on the web
<a href="http://dx.doi.org/10.1017/S0022377817000071" target="_blank" >http://dx.doi.org/10.1017/S0022377817000071</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S0022377817000071" target="_blank" >10.1017/S0022377817000071</a>

Result language
angličtina
Original language name
Proton fire hose instabilities in the expanding solar wind
Original language description
Using two-dimensional hybrid expanding box simulations we study the competition between the continuously driven parallel proton temperature anisotropy and fire hose instabilities in collisionless homogeneous plasmas. For a quasi-radial ambient magnetic field the expansion drives T-p parallel to > T-p perpendicular to and the system becomes eventually unstable with respect to the dominant parallel fire hose instability. This instability is generally unable to counteract the induced anisotropization and the system typically becomes unstable with respect to the oblique fire hose instability later on. The oblique instability efficiently reduces the anisotropy and the system rapidly stabilizes, while a significant part of the generated electromagnetic fluctuations is damped to protons. As long as the magnetic field is in the quasi-radial direction, this evolution repeats itself and the electromagnetic fluctuations accumulate. For a sufficiently oblique magnetic field the expansion drives T-p vertical bar > T-p parallel to and brings the system to the stable region with respect to the fire hose instabilities.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

Project
<a href="/en/project/GA15-10057S" target="_blank" >GA15-10057S: Solar wind ions: correlations, constraints, and causality</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)