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Waves at the plasma frequency inside magnetic holes: STEREO and Cluster observations
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SYSNO ASEP 0353827 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Waves at the plasma frequency inside magnetic holes: STEREO and Cluster observations Author(s) Briand, C. (FR)
Souček, Jan (UFA-U) RID, ORCID
Mangeney, A. (FR)
Bale, D. (US)
Goetz, K. (US)Source Title Twelfth International Solar Wind Conference. Proceedings Paper. - New York : Melville, 2010 / Maksimovic M. ; Issautier K. ; Meyer-Vernet N. ; Moncuquet M. ; Pantellini F. - ISSN 0094-243X - ISBN 978-0-7354-0759-6 Pages s. 271-275 Number of pages 4 s. Action International Solar Wind Conference /12./ Event date 21.06.2009-26.06.2009 VEvent location Saint-Milo Country FR - France Event type WRD Language eng - English Country US - United States Keywords solar wind ; Langmuir waves ; magnetic holes ; STEREO ; CLUSTER Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000281438100064 EID SCOPUS 77952050174 DOI 10.1063/1.3395853 Annotation Magnetic isolated large amplitude depressions in the interplanetary magnetic field are commonly observed in the solar wind. Some of these magnetic structures are accompanied by bursts of electrostatic waves close to electron plasma frequency. Combining STEREO/WAVES and IMPACT data we are able to accurately localize the waves emission. We show that they also appear inside kinetic holes, themselves situated inside larger holes. We provide, for the first time, the detailed waveform of the waves that reveal their very bursty nature. These results are complemented by CLUSTER data, which allow to resolve the electron distribution and obtain a better description of spatio-temporal variations in Langmuir wave activity. Such observations are confronted to different emission mechanisms. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2011
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