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| Titel |
Radio triangulation of solar radio emissions associated with the 2012 July 23 CME |
| VerfasserIn |
Vratislav Krupar, Oksana Kruparova, Ondrej Santolik, Volker Bothmer, Niclas Mrotzek, Jonathan P. Eastwood |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250144950
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| Publikation (Nr.) |
 EGU/EGU2017-8836.pdf |
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| Zusammenfassung |
| Coronal mass ejections (CMEs) are large-scale eruptions of magnetized plasma that may
cause severe geomagnetic storms if Earth directed. The backside CME from 2012 July 23
belongs among historical extreme solar events due to associated solar energetic particle fluxes
and the CME-driven shock speed above 2000 kms−1. Here, we focus on analysis
of associated interplanetary (IP) radio emissions. The frequency drift of the IP
type II burst provides us with a reasonable speed of the CME-driven shock. We
have successfully applied a radio direction-finding technique to IP type II and type
III bursts observed by the two identical radio receivers aboard the two STEREO
spacecraft. The radio triangulation technique allows us to localize radio sources in the IP
medium. The obtained locations of the type II and type III bursts are in a very good
agreement with the CME direction. We demonstrate the complementarity between radio
triangulation and 3D reconstruction techniques for space weather applications. |
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