The calcium K-line profiles as function of latitude and solar cycle phase

dc.contributor.author	Singh, J
dc.date.accessioned	2008-07-21T09:12:49Z
dc.date.available	2008-07-21T09:12:49Z
dc.date.issued	2002-05
dc.identifier.citation	Advances in Space Research, Vol. 29, No. 10, pp. 1441 - 1444	en
dc.identifier.issn	0273-1177
dc.identifier.uri	http://hdl.handle.net/2248/2757
dc.description	Restricted Access	en
dc.description.abstract	We have monitored the Calcium K-line profiles on daily basis at all the latitudes while integrating the spectrum over the visible longitudes of the Sun by moving a 340 mm solar image at a uniform speed in the E-W direction. The spectra were recorded at a dispersion of 9.34 mm/Å on 35 mm Kodak 103-a0 film for the time interval of 1986–95. Now we obtain the spectra using 1K × 1K peltier cooled CCD Camera. We plan to use the data to study possible long term variation in chromospheric rotation rate, differential rotation rate, variation in background flux, and changes in polar regions with the phase of the solar cycle through various parameters of this line	en
dc.format.extent	294479 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Elsevier	en
dc.relation.uri	http://www.ingentaconnect.com/content/els/02731177/2002/00000029/00000010/art00214	en
dc.subject	Spectrum	en
dc.subject	Sun	en
dc.subject	Solar Image	en
dc.subject	Chromospheric Rotation	en
dc.subject	Polar Regions	en
dc.subject	Solar Cycle	en
dc.subject	Parameters	en
dc.title	The calcium K-line profiles as function of latitude and solar cycle phase	en
dc.type	Article	en