Study of the Proton Beam Parameters Near the Sun

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10513138" target="_blank" >RIV/00216208:11320/25:10513138 - isvavai.cz</a>
Result on the web
<a href="https://physics.mff.cuni.cz/wds/proc/pdf25/WDS25_05_f2_Satyasmita.pdf" target="_blank" >https://physics.mff.cuni.cz/wds/proc/pdf25/WDS25_05_f2_Satyasmita.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Study of the Proton Beam Parameters Near the Sun
Original language description
The solar wind often shows two proton populations: a dense proton core anda faster, less dense proton beam. The relative abundance of the proton beam is typically10-20 %, and it drifts relative to the core along the interplanetary magnetic field at about1.2 local Alfven speed. The origin and evolution of the proton beam are not yet fully 'understood. Previous studies using Helios data suggest that the seed of the proton beamforms close to the Sun. In the paper, we investigate the radial evolution of various protonbeam parameters observed by the Parker Solar Probe between 0.05 and 0.7 AU. Wefind that the largest changes of the proton beam parameters (such as relative abundanceand drift velocity) occur up to 0.3 AU. We also study and discuss how the proton beamcharacteristics vary under different conditions in the solar wind, classified by collisionalage and cross-helicity
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
WDS'25 Proceedings of Contributed Papers - Physics
ISBN
978-80-7378-532-1
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
47-52
Publisher name
Matfyzpress
Place of publication
Prague
Event location
Praha
Event date
Jun 3, 2025
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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