A relation between frequency shift and the changes in activity indices

dc.contributor.author	Jain, K
dc.contributor.author	Tripathy, S. C
dc.contributor.author	Kumar, B
dc.contributor.author	Bhatnagar, A
dc.date.accessioned	2008-02-23T10:50:25Z
dc.date.available	2008-02-23T10:50:25Z
dc.date.issued	2000
dc.identifier.citation	BASI, Vol. 28, No. 1, pp. 89 - 90	en
dc.identifier.uri	http://hdl.handle.net/2248/2041
dc.description.abstract	We present a linear relation between the shift in p-mode frequencies and variation in two solar activity indices, namely the sunspot number and 10.7 cm radio flux. From this relation, an empirical model is constructed to estimate the mean frequency shifts with respect to activity index. We also compare the observed and estimated shifts for solar cycle 22 and comment on the systematic errors in different helioseismic data sets.	en
dc.format.extent	150251 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.relation.uri	http://adsabs.harvard.edu/abs/2000BASI...28...89J	en
dc.subject	Solar oscillation	en
dc.subject	Helioseismology	en
dc.subject	Solar activity	en
dc.title	A relation between frequency shift and the changes in activity indices	en
dc.type	Article	en