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Intense plasma wave emissions associated with Saturn's moon Rhea
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SYSNO ASEP 0367417 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Intense plasma wave emissions associated with Saturn's moon Rhea Author(s) Santolík, Ondřej (UFA-U) RID, ORCID
Gurnett, D. A. (US)
Jones, G. H. (US)
Schippers, P. (US)
Crary, F. J. (US)
Leisner, J. S. (US)
Hospodarsky, G. B. (US)
Kurth, W. S. (US)
Russell, C. T. (US)
Dougherty, M. K. (GB)Source Title Geophysical Research Letters. - : Wiley - ISSN 0094-8276
Roč. 38, - (2011), L19204/1-L19204/7Number of pages 7 s. Language eng - English Country US - United States Keywords III RADIO-BURSTS ; LANGMUIR-WAVES ; ICY MOON ; CASSINI ; ELECTRONS Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects GAP205/10/2279 GA ČR - Czech Science Foundation (CSF) ME10001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LH11122 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000295976200005 DOI 10.1029/2011GL049219 Annotation Measurements by the Cassini spacecraft during a close flyby of Saturn's moon Rhea on March 2, 2010, show the presence of intense plasma waves in the magnetic flux tube connected to the surface of the moon. Three types of waves were observed, (1) bursty electrostatic waves near the electron plasma frequency, (2) intense whistler-mode emissions below one half of the electron cyclotron frequency, and (3) broadband electrostatic waves at frequencies well below the ion plasma frequency. The waves near the electron plasma frequency are believed to be driven by a low energy (similar to 35 eV) electron beam accelerated away from Rhea. Their bursty structure is believed to be due to a nonlinear process similar to the three-wave interaction that occurs for Langmuir waves in the solar wind. 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 2012 Electronic address http://www.agu.org/pubs/crossref/2011/2011GL049219.shtml
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