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Indian Journal of Radio & Space Physics (IJRSP) >
IJRSP Vol.35 [2006] >
IJRSP Vol.35(5) [October 2006] >
| Title: | IMF and geomagnetic activity during the solar wind disappearance event |
| Authors: | Vats, Hari Om |
| Keywords: | Interplanetary magnetic field
Geomagnetic activity
Solar wind
Solar wind disappearance |
| Issue Date: | Oct-2006 |
| Publisher: | CSIR |
| Abstract: | There was a very peculiar situation reported during 11-12 May 1999, that the "solar wind disappeared". This was one of the long lasting, low velocity and low density solar wind events and was caused by the passage of a “void” around the earth and its environment. The interplanetary magnetic field (IMF), especially, the north-south component (Bz) remained quiet during the event. However, it showed a fast and intense fluctuation after the passage of this low solar wind region or “void”. The equatorial Dst and Ap variations indicate a mild geomagnetic storm after the passage of void. This mild geomagnetic storm is probably due to fluctuations in Bz whose value varies from –12 to 9 nT. |
| Page(s): | 307-311 |
| ISSN: | 0367-8393 |
| Source: | IJRSP Vol.35(5) [October 2006]
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