Active Phenomena of the Be Star EW Lac Observed in 1978–1982

  • Masakazu Suzuki
  • Tomokazu Kogure
Chapter

Abstract

The long-term variations of EW Lac in the Hγ and Hβ line profiles are presented. The active phase observed in 1978–1982 is characterized by the strengthening of emission lines accompanied by variations of radial velocities and V/R asymmetries. A model of a rotating elliptic ring is proposed.

Keywords

Radial Velocity Active Phenomenon Elliptic Ring Reidel Publishing Company Shell Absorption 
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References

  1. Huang, S. S.: 1973, Astrophys. J. 183, 541.ADSCrossRefGoogle Scholar
  2. Huang, S. S.: 1975, Sky and Telesc. 49, 359.ADSGoogle Scholar
  3. Kogure, T. and Suzuki, M.: 1984, Publ. Astron. Soc. Japan 36, 191.ADSGoogle Scholar
  4. Kogure, T., Asada, Y., and Suzuki, M.: 1984, in B. Hidayat and M. W. Feast, (eds.), Proc. Second Asian-Pacific Regional Meeting, held at Bandung, Indonesia, 1981, p. 504.Google Scholar
  5. Poeckert, R.: 1980, Publ. Dominion Astrophys. Obs. 15, 357.ADSGoogle Scholar

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Masakazu Suzuki
    • 1
  • Tomokazu Kogure
    • 2
  1. 1.Kanazawa Institute of TechnologyIshikawaJapan
  2. 2.Department of AstronomyUniversity of KyotoSakyo-ku, KyotoJapan

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