Evolution of the active region NOAA 10570 associated with the flares

dc.contributor.author	Sundararaman, K
dc.contributor.author	Ramesh, K. B
dc.contributor.author	Selvendran, R
dc.date.accessioned	2011-01-20T10:06:57Z
dc.date.available	2011-01-20T10:06:57Z
dc.date.issued	2004-12
dc.identifier.citation	Asian Journal of Physics, Vol. 13, No. 3&4, pp. 297-304	en
dc.identifier.uri	http://hdl.handle.net/2248/5308
dc.description.abstract	The structure and evolution of the photospheric magnetic fields observed in the active region NOAA 10570 are analyzed using Kodaikanal photoheliogram and spectroheliogram data. It is attempted to evaluate the shear angle changes by carefully observing the prominent umbrae belonging to the active region. These changes in the orientation of the umbrae infer the rotational motion developed in the sunspot group. It is found that the flux and shear angle changes observed in the sunspot configurations are related to triggering of flares in the active region NOAA 10570.	en
dc.language.iso	en	en
dc.publisher	Anita Publications	en
dc.rights	© Anita Publications	en
dc.title	Evolution of the active region NOAA 10570 associated with the flares	en
dc.type	Article	en