Wave activity upstream of the dayside bow shock: Statistical study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10448850" target="_blank" >RIV/00216208:11320/22:10448850 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mff.cuni.cz/veda/konference/wds/proc/pdf22/WDS22_02_f2_Salohub.pdf" target="_blank" >https://www.mff.cuni.cz/veda/konference/wds/proc/pdf22/WDS22_02_f2_Salohub.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Wave activity upstream of the dayside bow shock: Statistical study

Popis výsledku v původním jazyce

The present paper deals with spatial distributions of the fluctuations observed in front of the bow shock by the THEMIS B spacecraft and their compressibility. Alfvénic mode are the most frequent fluctuations observed because of their incompressive nature (since they are associated with σB) and survive much longer (are difficult to be damped). While a nature and intensity of compressive fluctuations (systematically vary with the stream structure) are strongly damped in the solar wind shortly after they are generated. The preliminary study reveals (1) different behaviors of the compressive and Alfvén-like components magnetic field fluctuations leading to compressibility in front of the bow shock, (2) a strong dependence of the fluctuation compressibility on the Alfvénic Mach number of the incoming solar wind, and (3) similar behavior of fluctuations of the compressive component of the magnetic field and ion density.

Název v anglickém jazyce

Wave activity upstream of the dayside bow shock: Statistical study

Popis výsledku anglicky

The present paper deals with spatial distributions of the fluctuations observed in front of the bow shock by the THEMIS B spacecraft and their compressibility. Alfvénic mode are the most frequent fluctuations observed because of their incompressive nature (since they are associated with σB) and survive much longer (are difficult to be damped). While a nature and intensity of compressive fluctuations (systematically vary with the stream structure) are strongly damped in the solar wind shortly after they are generated. The preliminary study reveals (1) different behaviors of the compressive and Alfvén-like components magnetic field fluctuations leading to compressibility in front of the bow shock, (2) a strong dependence of the fluctuation compressibility on the Alfvénic Mach number of the incoming solar wind, and (3) similar behavior of fluctuations of the compressive component of the magnetic field and ion density.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/GA21-26463S" target="_blank" >GA21-26463S: Procesy na magnetopauze, jejich příčiny a následky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

WDS&apos;22 Proceedings of Contributed Papers — Physics

ISBN

978-80-7378-477-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

16-21

Název nakladatele

Matfyzpress

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

7. 6. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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