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| Titel |
Waves associated with interplanetary shocks: Types and properties |
| VerfasserIn |
Oleksandr Goncharov, Zdenek Nemecek, Jana Safrankova, Lubomir Prech, Andriy Koval, Lynn B. Wilson III, Georgy N. Zastenker |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250123711
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| Publikation (Nr.) |
 EGU/EGU2016-3009.pdf |
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| Zusammenfassung |
| Interplanetary (IP) shocks are often associated with high-frequency (several Hz) wave packets
in both upstream and downstream regions. These waves could be resolved in Wind fast
magnetic field data but the time resolution of plasma instruments is insufficient for their
detection. The BMSW instrument onboard the Spektr-R spacecraft measures solar wind
parameters with a resolution of 32 ms and it allows a detailed analysis of these waves. Our
previous analysis of subcritical low-Mach-number fast forward shocks has shown that the
both upstream and downstream waves conserve over the spacecraft separation of the order of
200 Re and their wavelengths are directly proportional to the shock ramp thickness that is
controlled by the ion thermal gyroradius. Comparing observations of both Wind and
Spektr-R spacecraft, we discuss a nature of these waves in both regions and their
properties and their dependence on upstream solar wind and magnetic field parameters. |
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