Solar variability in the CaII K during solar cycles 21 and 22

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/1578

Title:	Solar variability in the CaII K during solar cycles 21 and 22
Authors:	Sivaraman, K. R Gupta, S. S Kariyappa, R Aleem, P. S. M Sundararaman, K
Keywords:	Solar variability
Issue Date:	1993
Publisher:	Astronomical Society of India
Citation:	BASI, Vol. 21, pp. 655-657
Abstract:	We have monitored the sun in the light of the CaII K line and obtained the disc integrated profiles for the years 1974-91. From these profiles we have estimated the variability of the sun as a star as seen in the various K line parameters. The 1 A index shows an increase of about 35% in 1990 from its minimum value attained in 1986-87.
URI:	http://hdl.handle.net/2248/1578
Appears in Collections:	BASI Publications IIAP Publications

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