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Title: Variation of the Si II features in the chemically peculiar star - HD 115735
Authors: Sriraghavan, S. M
Jayakumar, K
Babu, G. S. D
Sujatha, S
Keywords: Ap Stars;Spectral features;Equivalent width;Variation Period
Issue Date: Jun-2004
Publisher: Astronomical Society of India
Citation: BASI, Vol. 32, No. 2, pp. 113-119
Abstract: The chemically peculiar star HD 115735 (= HR 5023 = 21 CVn) was observed with the 2.34 meter Vainu Bappu Telescope at Kavalur during the period of January 1999 to April 2000. A total of 47 spectrograms were obtained in the wavelength region of 3900 º to 4400 º at a resolution of 0.65 per pixel. The equivalent widths of Si II features at 4077, 4128, 4131 have been found to be varying with a period of 0.88 +/- 0.02 day, the amplitudes being about 0.1º. This is the ¯first report of spectroscopic variations of these features in this star
URI: /725
Appears in Collections:BASI Publications

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