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

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/977

Title:	Intensity Fluctuations in the H-alpha line caused by Chromospheric mottling
Authors:	Bappu, M. K. V
Keywords:	H-alpha Chromospheric mottling
Issue Date:	1964
Publisher:	IETE
Citation:	Journal of the Institution of Telecommunication Engineers, Vol. 10, No. 8, pp. 388-393
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
URI:	http://hdl.handle.net/2248/977
Appears in Collections:	IIAP Publications M.K. Vainu Bappu ( 1960 - 1982 )

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