Digitization of Kodaikanal Data

Singh, J; Muneer, S; Bagare, S. P; Rangarajan, K. E; Ramesh, K. B; Varghese, B. A; Samson, J. P. A; Devendran, P; Hariharan, G

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dc.contributor.author	Singh, J
dc.contributor.author	Muneer, S
dc.contributor.author	Bagare, S. P
dc.contributor.author	Rangarajan, K. E
dc.contributor.author	Ramesh, K. B
dc.contributor.author	Varghese, B. A
dc.contributor.author	Samson, J. P. A
dc.contributor.author	Devendran, P
dc.contributor.author	Hariharan, G
dc.date.accessioned	2008-05-27T08:15:10Z
dc.date.available	2008-05-27T08:15:10Z
dc.date.issued	2003
dc.identifier.citation	BASI, Vol. 31, No. 2, pp. 111 - 115	en
dc.identifier.uri	http://hdl.handle.net/2248/2350
dc.description.abstract	In this report we describe a digitizer developed in the laboratories of the Indian Institutes of Astrophysics (IIA) to digitize the large amount of solar synoptic data obtained since 1904 at Kodaikanal. We show a sample spectrum, an Hα Spectroheliogram, and a Ca+K spectroheliogram digitized using this equipment. The digitized data will be used to study the temporal variations in photospheric and chromospheric rotation rates, the solar differential rotation, the evolution of sunspots & Hα filaments, and in the evaluation of Ca+K plage and network indices. The digitized data will be made available to the scientific community as a part of IIA's astronomical data archive.	en
dc.format.extent	153634 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/2003BASI...31..111S	en
dc.subject	Digitization	en
dc.subject	Spectroheliogram	en
dc.subject	Solar synoptic data	en
dc.title	Digitization of Kodaikanal Data	en
dc.type	Article	en