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Spectroscopic Observations of BF Cygni

Published online by Cambridge University Press:  25 April 2016

C. C. Huang  and
L. Chen
C. C. Huang
Affiliation:
Purple Mountain Observatory, Academia Sinica, 210 008 Nanjing, China
L. Chen
Affiliation:
Nanjing Astronomical Instrument Factory, Academia Sinica, 210 042 Nanjing, China
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Abstract

Spectroscopic observations of BF Cygni performed at the Haute-Provence Observatory in 1981 August, October and November are presented. The spectrum of BF Cyg was dominated by strong emission lines of H I, He I, [O III] and [Ne III]. Emission lines of He II and N III were weak. The spectrum of the star displayed dramatic variations during our observations. The intensities of Balmer lines, Balmer continuum and He I lines clearly increased from August to October, while the lines of [Ne III] and [O III] showed inverse variability.

Type
Galactic and Stellar
Information
Publications of the Astronomical Society of Australia , Volume 9 , Issue 2 , 1991 , pp. 293 - 294
Copyright
Copyright © Astronomical Society of Australia 1991

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References

Andrillat, Y. and Houziaux, L., 1982, IAU Colloq. No. 70, 57.Google Scholar
Boyarchuk, A. A., 1969, Non-periodic Phenomena in Variable Stars, (ed. Dette, L.), Academic Press, Budapest, p. 395.Google Scholar
Kenyon, S. J., 1986, The Symbiotic Stars, CUP.Google Scholar
Mikolajewska, J. and Iijima, T., 1988, Acta Astron., 38, 37.Google Scholar
Osterbrock, D. E., 1964, Astrophysics of Gaseous Nebulae, W. H. Freeman Co, San Francisco.Google Scholar
Pucinskas, A., 1970, Bull. Vilniaus Univ. Asr. Obs., 27, 24.Google Scholar
Slovak, M. H., 1980, Bull. Am. Astr. Soc., 12, 868.Google Scholar