 |
| Titel |
A comet-like ionosphere at Venus in tenuous solar wind |
| VerfasserIn |
Y. Wei, M. Fraenz, E. Dubinin, A. Coates, S. Barabash, T. Zhang |
| Konferenz |
EGU General Assembly 2012
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250061913
|
|
|
|
|
|
| Zusammenfassung |
| A very tenuous solar wind regime, following a series of large coronal mass ejections, impacted Venus during early August 2010. STEREO-B downstream from Venus observed that the solar wind density at Earth orbit dropped to ~ 0.1 #/cm3 and persisted over 1 day. A similar low value was observed at Earth in 1999 and had attracted comprehensive attention [Lazarus, Science, 2000], especially its consequences on Earth’s ionosphere and magnetosphere [Lockwood, Nature, 2001]. We therefore have an opportunity to examine the response of Venus’ ionosphere to such a tenuous solar wind. Venus Express spacecraft observed that the nightside ionosphere extended to at least 2 RV to the Venus center, resembling a cometary ionosphere. |
|
|
|
|
|
|