Astrophysics and Space Science

, Volume 119, Issue 1, pp 69–72 | Cite as

Active phenomena of the Be star EW Lac observed in 1978–1982

  • Masakazu Suzuki
  • Tomokazu Kogure


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 andV/R asymmetries. A model of a rotating elliptic ring is proposed.


Radial Velocity Emission Line Active Phase Line Profile Active Phenomenon 
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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 KyotoKyotoJapan

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