Počet záznamů: 1
Generation mechanism of the whistler-mode waves in the plasma sheet prior to magnetic reconnection
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SYSNO ASEP 0423090 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Generation mechanism of the whistler-mode waves in the plasma sheet prior to magnetic reconnection Tvůrce(i) Wei, X. H. (CN)
Cao, J. B. (CN)
Zhou, G. C. (CN)
Fu, H. S. (CN)
Santolík, Ondřej (UFA-U) RID, ORCID
Reme, H. (FR)
Dandouras, I. (FR)
Cornilleau, N. (FR)
Fazakerley, A. (GB)Celkový počet autorů 9 Zdroj.dok. Advances in Space Research. - : Elsevier - ISSN 0273-1177
Roč. 52, č. 1 (2013), s. 205-210Poč.str. 6 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova whistler-mode waves ; electron temperature anisotropy ; Reconnection ; the plasma sheet Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Institucionální podpora UFA-U - RVO:68378289 UT WOS 000320639100019 DOI 10.1016/j.asr.2013.02.016 Anotace The whistler-mode waves and electron temperature anisotropy play a key role prior to and during magnetic reconnection. On August 21, 2002, the Cluster spacecrafts encountered a quasi-collisionless magnetic reconnection event when they crossed the plasma sheet. Prior to the southward turning of magnetospheric magnetic field and high speed ion flow, the whistler-mode waves and positive electron temperature anisotropy are simultaneously observed. Theoretic analysis shows that the electrons with positive temperature anisotropy can excite the whistler-mode waves via cyclotron resonances. Using the data of particles and magnetic field, we estimated the whistler-mode wave growth rate and the ratio of whistler-mode growth rate to wave frequency. They are 0.0016f(ce) (Electron cyclotron frequency) and 0.0086f(ce), respectively. Therefore the whistler-mode waves can grow quickly in the current sheet. The combined observations of energetic electron beams and waves show that after the southward turning of magnetic field, energetic electrons in the reconnection process are accelerated by the whistler-mode waves. (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved. 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 2014
Počet záznamů: 1