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Spectral variability of the STAR 55 Cyg B3 Ia

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Abstract

We study the variability of the Hα and Hβ lines in the spectrum of 55 Cyg based on observations carried out in 2010 on the 2-m telescope of the Shamakhy Observatory of the Azerbaijan National Academy of Sciences. These observations were carried out at the Cassegrain focus of the telescope. The spectral resolution is close to 15 000. The Hα emission and absorption components disappeared on some nights. This may be associated with asphericity of the stellar wind. A more complete explanation requires additional observations.

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Authors and Affiliations

  1. N. Tusi Shamakhy Astrophysical Observatory, Azerbaijan National Academy of Sciences, Yu. Mammadaliyev settlement, Shamakhy district, Republic of Azerbaijan

    Y. M. Maharramov

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  1. Y. M. Maharramov
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Correspondence to Y. M. Maharramov.

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Original Russian Text © Y.M. Maharramov, 2013, published in Astronomicheskii Zhurnal, 2013, Vol. 90, No. 4, pp. 339–346.

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Maharramov, Y.M. Spectral variability of the STAR 55 Cyg B3 Ia. Astron. Rep. 57, 303–309 (2013). https://doi.org/10.1134/S1063772913030037

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