Magnetospheric line radiation event observed simultaneously on board Cluster 1, Cluster 2 and DEMETER spacecraft

0387255 - ÚFA 2013 RIV US eng J - Článek v odborném periodiku
Němec, F. - Santolík, Ondřej - Parrot, M. - Pickett, J. S.
Magnetospheric line radiation event observed simultaneously on board Cluster 1, Cluster 2 and DEMETER spacecraft.
Geophysical Research Letters. Roč. 39, č. 18 (2012), L18103/1-L18103/5. ISSN 0094-8276. E-ISSN 1944-8007
Grant CEP: GA ČR GA205/09/1253; GA MŠMT ME09107
Institucionální podpora: RVO:68378289
Klíčová slova: magnetospheric line radiation * electromagnetic waves * Cluster * DEMETER
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 3.982, rok: 2012
http://onlinelibrary.wiley.com/doi/10.1029/2012GL053132/abstract

We present a case study of a magnetospheric line radiation (MLR) event observed simultaneously by Cluster 1 and Cluster 2 during a perigee passage at a radial distance of about 4 R-E and, at the same time, by the low-orbiting DEMETER satellite. This unique constellation enables us to analyze spatiotemporal variability of the phenomenon. Although the Cluster spacecraft are separated by as much as 0.7 L-shells, the observed wave pattern is the same on both. The analysis of B to E ratios indicates a quasiparallel propagation, which suggests that the waves cross the geomagnetic equator over a significant range of L-shells, at least 3.9-4.6. Simultaneous observations by the DEMETER satellite separated by about 1.8 hours in MLT from the Cluster spacecraft indicate a significant azimuthal extent of the source. The obtained results show that during the MLR event the same wave pattern is observed over a significant portion of the inner magnetosphere.
Trvalý link: http://hdl.handle.net/11104/0217841