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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2349
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dc.contributor.authorSundararaman, K-
dc.contributor.authorRamesh, K. B-
dc.contributor.authorSelvendran, R-
dc.date.accessioned2008-05-27T07:37:09Z-
dc.date.available2008-05-27T07:37:09Z-
dc.date.issued2003-
dc.identifier.citationBASI, Vol. 31, No. 2, pp. 101 - 109en
dc.identifier.urihttp://hdl.handle.net/2248/2349-
dc.description.abstractThe evolution of large active regions NOAA 9393 and NOAA 9433 observed during March and April 2001 respectively on their successive rotation and the active region NOAA 10069 that appeared during August 2002 were studied. Kodaikanal photoheliogram and Hα Spectroheliogram data of these active regions were analyzed to identify the flare triggering mechanism. It is found that the umbral rotation in these δ -type sunspots plays an important role for the occurrence of flares. The flare locations were generally near sites where the umbrae of the sunspot underwent more rotation.en
dc.format.extent313456 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherAstronomical Society of Indiaen
dc.relation.urihttp://adsabs.harvard.edu/abs/2003BASI...31..101Sen
dc.subjectSunen
dc.subjectUmbraen
dc.subjectSunspoten
dc.subjectFlareen
dc.titleThe role of sunspot umbral rotation in triggering solar flaresen
dc.typeArticleen
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