Počet záznamů: 1
Theory and observation of electromagnetic ion cyclotron triggered emissions in the magnetosphere
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SYSNO ASEP 0357117 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Theory and observation of electromagnetic ion cyclotron triggered emissions in the magnetosphere Tvůrce(i) Omura, Y. (JP)
Pickett, J. (US)
Grison, Benjamin (UFA-U) RID, ORCID
Santolík, Ondřej (UFA-U) RID, ORCID
Dandouras, I. (FR)
Engebretson, M. (US)
Décréau, P. M. E. (FR)
Masson, A. (NL)Zdroj.dok. Journal of Geophysical Research - ISSN 0148-0227
Roč. 115, A7 (2010), A07234/1-A07234/13Poč.str. 13 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova nonlinear wave growth ; EMIC Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEP GAP205/10/2279 GA ČR - Grantová agentura ČR IAA301120601 GA AV ČR - Akademie věd CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000280590300002 DOI 10.1029/2010JA015300 Anotace We develop a nonlinear wave growth theory of electromagnetic ion cyclotron (EMIC) triggered emissions observed in the inner magnetosphere. We first derive the basic wave equations from Maxwell's equations and the momentum equations for the electrons and ions. We then obtain equations that describe the nonlinear dynamics of resonant protons interacting with an EMIC wave. The frequency sweep rate of the wave plays an important role in forming the resonant current that controls the wave growth. Assuming an optimum condition for the maximum growth rate as an absolute instability at the magnetic equator and a self-sustaining growth condition for the wave propagating from the magnetic equator, we obtain a set of ordinary differential equations that describe the nonlinear evolution of a rising tone emission generated at the magnetic equator. 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 2011
Počet záznamů: 1