Ca II K Emission in Canopus

dc.contributor.author	Bappu, M. K. V
dc.contributor.author	Mekkaden, M. V
dc.contributor.author	Kameswara Rao, N
dc.date.accessioned	2005-12-06T10:32:20Z
dc.date.available	2005-12-06T10:32:20Z
dc.date.issued	1984-06
dc.identifier.citation	BASI, Vol. 12, No. 2, pp. 196-201	en
dc.identifier.uri	http://hdl.handle.net/2248/623
dc.description.abstract	The Changes in the Ca II K line profile of the F0 supergiant Canopus have been studied from the high dispersion coude spectrograms obtained since 1975. The emission in the core of the line is variable in a timescale of few days. Similar activity seems to be occuring in Mg II h and k lines also. This is attributed to the variability in the appearance of plage areas on the stellar surface.	en
dc.format.extent	441404 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en
dc.publisher	Astronomical Society of India	en
dc.subject	Ca II K Line	en
dc.subject	Mg II h and k lines	en
dc.subject	Chromospheres	en
dc.subject	Plages	en
dc.title	Ca II K Emission in Canopus	en
dc.type	Article	en