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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2876
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dc.contributor.authorVenkatakrishnan, P-
dc.date.accessioned2008-07-25T05:44:09Z-
dc.date.available2008-07-25T05:44:09Z-
dc.date.issued1993-01-10-
dc.identifier.citationSolar physics, Vol. 143, No. 2, pp. 385 - 387en
dc.identifier.issn0038-0938-
dc.identifier.urihttp://hdl.handle.net/2248/2876-
dc.description.abstractIt is shown that pre-flare activity in H-alpha filaments is unrelated to changes in magnetic shear. Changes in the shear angle are found to be related to either redeployment of the sources of magnetic flux relative to the main sunspots or to the emergence of new flux. Without involving any measure of the transverse magnetic field, it is difficult to link changes in the shear angle with changes in magnetic shear. It is also determined that non-potential magnetic fields are necessary for the occurrence of flares.en
dc.format.extent341064 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherKluwer Academic Publishersen
dc.relation.urihttp://adsabs.harvard.edu/abs/1993SoPh..143..385Ven
dc.subjectH alpha lineen
dc.subjectSolar magnetic fielden
dc.subjectSolar physicsen
dc.subjectSolar prominencesen
dc.subjectSolar flaresen
dc.subjectSunspotsen
dc.titleOn the evaluation of magnetic shear from H-alpha picturesen
dc.typeArticleen
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