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Titel |
Pc5 waves generated by substorm injection: a case study |
VerfasserIn |
N. A. Zolotukhina, P. N. Mager, D. Yu. Klimushkin |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
0992-7689
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Digitales Dokument |
URL |
Erschienen |
In: Annales Geophysicae ; 26, no. 7 ; Nr. 26, no. 7 (2008-07-28), S.2053-2059 |
Datensatznummer |
250016168
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Publikation (Nr.) |
copernicus.org/angeo-26-2053-2008.pdf |
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Zusammenfassung |
We analyzed the spectral-polarized characteristics of Pc5 ULF waves observed
on 17 September 2000 after the 03:20:25 UT substorm onset with the satellites
GOES 8 and 10 located east and west of the onset location. In the course of
the event, the wave polarization changed from mixed (between toroidal and
poloidal) to poloidal, and then to mixed again. The hodogram of magnetic
field oscillations rotated counterclockwise at GOES 8, and clockwise at
GOES 10. It is suggested that the satellites detected the waves generated by
the substorm injected clouds of the charged particles drifting in the
magnetosphere in the opposite azimuthal directions: GOES 8 (located east of
the substorm onset) detected the wave generated by an electron cloud, and
GOES 10 (west of the onset) detected the wave generated by a positive ion
cloud. This interpretation is confirmed by the energetic particles data
recorded by LANL satellites. |
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