Proton Energization by Phase Steepening of Parallel-propagating Alfvenic Fluctuations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00548004" target="_blank" >RIV/67985815:_____/21:00548004 - isvavai.cz</a>
Alternative codes found
RIV/68378289:_____/21:00543711
Result on the web
<a href="https://doi.org/10.3847/2041-8213/ac097b" target="_blank" >https://doi.org/10.3847/2041-8213/ac097b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/2041-8213/ac097b" target="_blank" >10.3847/2041-8213/ac097b</a>
Alternative languages
Result language
angličtina
Original language name
Proton Energization by Phase Steepening of Parallel-propagating Alfvenic Fluctuations
Original language description
Proton energization at magnetic discontinuities generated by phase-steepened fronts of parallel-propagating, large-amplitude Alfvenic fluctuation is studied using hybrid simulations. We find that dispersive effects lead to the collapse of the wave via phase steepening and the subsequent generation of compressible fluctuations that mediate an efficient local energy transfer from the wave to the protons. Proton scattering at the steepened edges causes nonadiabatic proton perpendicular heating. Furthermore, the parallel electric field at the propagating fronts mediates the acceleration of protons along the mean field. A steady-state is achieved where the proton distribution function displays a field-aligned beam at the Alfven speed, and compressible fluctuations are largely damped. We discuss the implications of our results in the context of Alfvenic solar wind.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal Letters
ISSN
2041-8205
e-ISSN
2041-8213
Volume of the periodical
914
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
L36
UT code for WoS article
000664294700001
EID of the result in the Scopus database
2-s2.0-85109138683