Počet záznamů: 1
Location and size of the global source region of whistler-mode chorus
0338125 - UFA-U 2011 RIV US eng J - Článek v odborném periodiku
Hayosh, Mykhaylo - Santolík, Ondřej - Parrot, M.
Location and size of the global source region of whistler-mode chorus.
Journal of Geophysical Research. Roč. 115, - (2010), A00F06/1-A00F06/8 ISSN 0148-0227
Grant CEP: GA MŠk ME09107; GA ČR GA205/09/1253; GA AV ČR IAA301120601
Grant ostatní: ESA PECS(XE) 98025; CNRS/DREI(FR) PICS 3725
Výzkumný záměr: CEZ:AV0Z30420517
Klíčová slova: CLUSTER * ray-tracing * chorus
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 3.303, rok: 2010
We use multicomponent measurements of the four Cluster spacecraft and a backward ray tracing simulation to estimate the location and size of the global source of whistler-mode chorus emissions in the magnetic equatorial plane. For the first time, analysis is made in a broad range of latitudes in both hemispheres along a single Cluster orbit. Our results show that for different time intervals, the sizes of the observed portions of the global chorus source region in the equatorial plane varied between 0.4-1.5 Earth radii. They were found at radial distances between 4.5 and 8.2 Earth radii during 2 hours of measurements. Therefore, the superposed minimum width of the global source region of whistler-mode chorus in the magnetic equatorial plane is approximately 4 Earth radii.
Trvalý link: http://hdl.handle.net/11104/0181981