Intensity Fluctuations in the H-alpha line caused by Chromospheric mottling

dc.contributor.author	Bappu, M. K. V
dc.date.accessioned	2006-04-19T10:15:28Z
dc.date.available	2006-04-19T10:15:28Z
dc.date.issued	1964
dc.identifier.citation	Journal of the Institution of Telecommunication Engineers, Vol. 10, No. 8, pp. 388-393	en
dc.identifier.uri	http://hdl.handle.net/2248/977
dc.description.abstract	Spectra of the H-alpha line obtained with high dispersion and high spatial resolution are used to study some of the characteristics of chromospheric mottling on the solar disk. The fluctuations in intensity, indicated by the r.m.s. values, are given for delta lamda = 0.6 A., plus or minus 0.4A., plus or minus 0.2 A. as well as the line centre. The fine mottles have sizes less than 1800 km. Values of the total number of mottles visible on the disk are estimated from mottle counts made at slit positions on the solar disk at mu = 1.00 and mu = 0.45	en
dc.format.extent	1866425 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	IETE	en
dc.subject	H-alpha	en
dc.subject	Chromospheric mottling	en
dc.title	Intensity Fluctuations in the H-alpha line caused by Chromospheric mottling	en
dc.type	Article	en