Analysis of solar flare in CaII K on 1989 March 13

dc.contributor.author	Joshi, A
dc.contributor.author	Uddin, W
dc.date.accessioned	2007-03-21T07:00:55Z
dc.date.available	2007-03-21T07:00:55Z
dc.date.issued	1991
dc.identifier.citation	BASI, Vol. 20, pp. 75-85	en
dc.identifier.uri	http://hdl.handle.net/2248/1461
dc.description.abstract	We report the CaII K observations of a major umbral solar flare of optical class 3B which occurred on 1989 March 13. Correlated optical, microwave, soft X-ray (SXR), sudden ionospheric disturbance observations and the resulting proton enhancements have also been analyzed. The values of magnetic field perpendicular to electron velocity electron energy E and angular size of a great microwave burst (GB) source are estimated as 897 gauss, 1.4 MeV, and 7 arcsec, respectively. Due to the production of long-duration hard X-ray burst and GB, we conclude that the observed flare is very energetic	en
dc.format.extent	833193 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	Calcium	en
dc.subject	Solar flares	en
dc.title	Analysis of solar flare in CaII K on 1989 March 13	en
dc.type	Article	en