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Chorus observations by the Polar spacecraft near the mid-altitude cusp
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SYSNO ASEP 0332628 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Chorus observations by the Polar spacecraft near the mid-altitude cusp Title Pozorování emisí typu chorus na družici Polar v blízkosti cuspu ve středních výškách Author(s) Menietti, J. D. (US)
Santolík, Ondřej (UFA-U) RID, ORCID
Abaci, P. C. (US)Source Title Planetary and Space Science. - : Elsevier - ISSN 0032-0633
Roč. 57, č. 12 (2009), s. 1412-1418Number of pages 7 s. Language eng - English Country US - United States Keywords chorus ; mid-altitude cusp ; Polar spacecraft Subject RIV BL - Plasma and Gas Discharge Physics R&D Projects IAA301120601 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000271365200010 DOI 10.1016/j.pss.2009.07.003 Annotation Observations of whistler-mode emission, including chorus, were made frequently by mid-altitude satellites such as Polar. In this study we examine an example of such emission when the high-frequency waveform receiver on board Polar was operating allowing direction-finding and polarization measurements in the low-altitude cusp. The results reveal at least two and possibly three distinct groups of narrow-banded chorus emission with a primary source region at the magnetic equator. The groups include emission propagating near the resonance cone angle, emission propagating along a density duct, and possibly emission reflected from the low-altitude cusp. The results indicate that the mid- and low-altitude cusp, perhaps unlike the high-altitude cusp, is not a significant source of narrowband chorus emission. 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 2010
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