Vlastnosti zrcadlových vln v přechodové oblasti pozorovaných družicemi Cluster a jejich reakce na změny parametrů plazmatu

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F08%3A00306672" target="_blank" >RIV/68378289:_____/08:00306672 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Properties of magnetosheath mirror modes observed by Cluster and their response to changes in plasma parameters

Popis výsledku v původním jazyce

Mirror modes are large amplitude non-propagating compressive structures frequently observed in the magnetosheath. They appear in the form of profound magnetic decreases (dips) or magnetic enhancements (peaks), accompanied by an anticorrelated signature in plasma density. In this study we present an analysis of the properties of mirror modes in the magnetosheath of the Earth based on a database of Cluster observations and also a detailed case study of one magnetosheath traversal. It is shown that the character of mirror structures is related to the local degree of instability of the plasma with respect to the mirror instability threshold: peaks are typically observed in an unstable plasma, while mirror structures observed deep within the stable region appear almost exclusively as dips. An abrupt transition of mirror structures from peaks to dips at a distance of 2 Earth radii from the magnetopause was identified and we interpret this effect as a consequence of plasma expansion in this r

Název v anglickém jazyce

Properties of magnetosheath mirror modes observed by Cluster and their response to changes in plasma parameters

Popis výsledku anglicky

Mirror modes are large amplitude non-propagating compressive structures frequently observed in the magnetosheath. They appear in the form of profound magnetic decreases (dips) or magnetic enhancements (peaks), accompanied by an anticorrelated signature in plasma density. In this study we present an analysis of the properties of mirror modes in the magnetosheath of the Earth based on a database of Cluster observations and also a detailed case study of one magnetosheath traversal. It is shown that the character of mirror structures is related to the local degree of instability of the plasma with respect to the mirror instability threshold: peaks are typically observed in an unstable plasma, while mirror structures observed deep within the stable region appear almost exclusively as dips. An abrupt transition of mirror structures from peaks to dips at a distance of 2 Earth radii from the magnetopause was identified and we interpret this effect as a consequence of plasma expansion in this r

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Journal of Geophysical Research

ISSN

0148-0227

e-ISSN

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Svazek periodika

113

Číslo periodika v rámci svazku

A4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

"A04203/1"-"A04203/14

Kód UT WoS článku

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EID výsledku v databázi Scopus

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