Počet záznamů: 1
Cluster observations of trapped ions interacting with magnetosheath mirror modes
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SYSNO ASEP 0360932 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Cluster observations of trapped ions interacting with magnetosheath mirror modes Tvůrce(i) Souček, Jan (UFA-U) RID, ORCID
Escoubet, C. P. (NL)Zdroj.dok. Annales Geophysicae. - : Copernicus - ISSN 0992-7689
Roč. 29, - (2011), s. 1049-1060Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova mirror mode waves ; trapped particles ; magnetosheath ions Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000291945800009 DOI 10.5194/angeo-29-1049-2011 Anotace Mirror modes are among the most intense low frequency plasma wave phenomena observed in the magnetosheaths of magnetized planets. They appear as large amplitude non-propagating fluctuations in the magnetic field magnitude and plasma density. These structures are widely accepted to represent a non-linear stage of the mirror instability, dominant in plasmas with large ion beta and a significant ion temperature anisotropy. It has long been recognized that the mirror instability both in the linear and non-linear stage is a kinetic process and that the behavior of resonant particles at small parallel velocities is crucial for its development and saturation. In this work we used data from the Cluster spacecraft to perform the first detailed experimental study of ion velocity distribution associated with mirror mode oscillations. We show a conclusive evidence for the predicted cooling of resonant ions at small parallel velocities and heating of trapped ions at intermediate pitch angles. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2012 Elektronická adresa http://www.ann-geophys.net/29/1049/2011/angeo-29-1049-2011.pdf
Počet záznamů: 1