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A search for the Hα emission in spectroscopic binaries of the spectral types B0–B9

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Abstract

The Hα emission is searched for 67 spectroscopic binaries of the spectral types B0–B9 and of the orbital period 1–1000 days. Among them the Hα emission is detected in 13 stars with various intensity. The results of this inspection are presented. When combined with the previous data, our results show that the Be-star frequency in spectroscopic binaries along the orbital periods exhibits a sharp maximum in the period range 100–300 days, and that the stars of strong Hα emission concentrate in the same period range.

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Authors and Affiliations

  1. Department of Astronomy, Faculty of Science, University of Kyoto, Japan

    Tomokazu Kogure

  2. Kanazawa Institute of Technology, Kanazawa-South, P.O., Ishikawa, Japan

    Masakazu Suzuki

Authors
  1. Tomokazu Kogure
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  2. Masakazu Suzuki
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Kogure, T., Suzuki, M. A search for the Hα emission in spectroscopic binaries of the spectral types B0–B9. Astrophys Space Sci 127, 143–151 (1986). https://doi.org/10.1007/BF00637770

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  • DOI: https://doi.org/10.1007/BF00637770

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