On the occurrence rate of high-speed solar wind events

dc.contributor.author	Verma, V. K.
dc.contributor.author	Joshi, G. C.
dc.date.accessioned	2009-12-18T05:04:41Z
dc.date.available	2009-12-18T05:04:41Z
dc.date.issued	1994
dc.identifier.citation	This article downloded from ADS Free Online Journal	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/386
dc.description.abstract	We have investigated the rate of occurrence of solar wind phenomenon observed between 1972-1984 using power-spectrum analysis. The data have been taken from the high-speed solar wind (HSSW) stream catalogue published by Mavromichalaki, Vassilaki, and Marmatsouri (1998). The power-spectrum analysis of HSSW events indicates that HSSW stream events have a periodicity of 9 days. This periodicity of HSSW events is 1/3 of the 27- days period of coronal holes, which are major sources of solar wind events. In our opinion, the 9-day period may be the energy build-up time for coronal hole regions to produce the HSSW stream events.	en_US
dc.language.iso	en_US	en_US
dc.relation.ispartofseries	sp155-401
dc.subject	HSSW stream, Solar wind,	en_US
dc.title	On the occurrence rate of high-speed solar wind events	en_US
dc.type	Article	en_US