Počet záznamů: 1
On The Propagation And Modulation Of Electrostatic Solitary Waves Observed Near The Magnetopause On Cluster
- 1.
SYSNO ASEP 0380790 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název On The Propagation And Modulation Of Electrostatic Solitary Waves Observed Near The Magnetopause On Cluster Tvůrce(i) Pickett, J. S. (US)
Christopher, I. W. (US)
Grison, Benjamin (UFA-U) RID, ORCID
Grimald, S. (FR)
Santolík, Ondřej (UFA-U) RID, ORCID
Décréau, P. M. E. (FR)
Lefebvre, B. (US)
Engebretson, M. J. (US)
Kistler, L. M. (US)
Constantinescu, D. (DE)
Chen, L. J. (US)
Omura, Y. (JP)
Lakhina, G. S. (IN)
Gurnett, D. A. (US)
Cornilleau-Wehrlin, N. (FR)
Fazakerley, A. N. (GB)
Dandouras, I. (FR)
Lucek, E. (GB)Zdroj.dok. AIP Conference Proceedings , 1320 - Vol.. - Melville : American Institute of Physics, 2010 / Vassiliadis D. ; Fung S. F. ; Daglis I. A. ; Huba J. D. - ISSN 0094-243X - ISBN 978-0-7354-0875-3 Rozsah stran s. 115-124 Poč.str. 10 s. Forma vydání Tištěná - P Akce Conference on Modern Challenges in Nonlinear Plasma Physics Datum konání 15.06.2009-19.06.2009 Místo konání Chalkidiki Země GR - Řecko Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Magnetopause ; Electrostatic Solitary Waves ; Pc1 Waves ; Buneman Instability Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000289535000016 EID SCOPUS 79251603184 DOI https://doi.org/10.1063/1.3544316 Anotace We present the results of a study of Electrostatic Solitary Waves (ESWs) in which propagation of a series of noncyclical ESWs is observed from one Cluster spacecraft to another over distances as great as tens of km and time lags as great as a few tens of ms. This propagation study was conducted for locations near the magnetopause on the magnetosheath side. Propagation was found primarily toward the earth with speeds on the order of 1500 to 2400 km/s. The sizes of the ESWs obtained from these velocities were on the order of 1 km along the magnetic field direction and several tens of km perpendicular. These results are consistent with measurements on single spacecraft in which the ESW propagation is observed with time lags of only similar to 0.1 ms. Our results thus show the stability of ESWs over time periods much greater than their own characteristic pulse durations of a few 100s of microseconds. We present also the results of a study of ESW modulation at the magnetopause on the earthward side. We found that ESWs were modulated at similar to 1.3 Hz, consistent with a Pc1 wave which was observed concurrently. During this time, tens of eV electron beams are present. We propose a Buneman type instability in which the E-parallel to component of the Pc1 waves provides a mechanism for accelerating electrons, resulting in the generation of the ESWs modulated at the Pc1 frequency. 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 2013
Počet záznamů: 1