Magnetic field gradient and flare: study of a small flare in NOAA 8038

dc.contributor.author	Mathew, S. K
dc.contributor.author	Ambastha, A
dc.date.accessioned	2008-09-01T10:23:46Z
dc.date.available	2008-09-01T10:23:46Z
dc.date.issued	2000-11
dc.identifier.citation	Solar Physics, Vol. 197, No. 1, pp. 75 - 84	en
dc.identifier.issn	00038-0938
dc.identifier.uri	http://hdl.handle.net/2248/3309
dc.description	Restricted Access	en
dc.description.abstract	Active region NOAA 8038 was observed from 10 to 13 May, 1997 using the USO solar video magnetograph. During this period, the active region was mostly inactive, and gave rise to only a single notable flare of 1N/C1.3 class on May 12, 1997/04:45 UT. The flare occurred in a weak field location, but new emerging fluxes were observed prior to the flare onset. Horizontal motions of the network photospheric magnetic fluxes were inferred using USO and SOHO magnetograms, and velocities in the range 300-800 m s/Sup-1 were estimated. The initial flare brightening was observed at the flux cancellation site where magnetic field gradients were found to increase. Detailed analyses of flux motions, cancellation and their relation with the flare are presented.	en
dc.language.iso	en	en
dc.publisher	Springer	en
dc.relation.uri	http://www.springerlink.com/content/j0388443600861p1/	en
dc.subject	Active Region NOAA 8038	en
dc.subject	Emerging Fluxes	en
dc.subject	Photospheric Magnetic Fluxes	en
dc.subject	SOHO Magnetograms	en
dc.title	Magnetic field gradient and flare: study of a small flare in NOAA 8038	en
dc.type	Article	en