Binary Nature and Long‐Term Variations of γ Cassiopeiae

@article{Miroshnichenko2002BinaryNA,
  title={Binary Nature and Long‐Term Variations of $\gamma$ Cassiopeiae},
  author={A. Miroshnichenko and K. Bjorkman and V. D. Krugov},
  journal={Publications of the Astronomical Society of the Pacific},
  year={2002},
  volume={114},
  pages={1226-1233}
}
We present the results of high-resolution spectroscopic observations of the bright Be star g Cas obtained at the Ritter Observatory of the University of Toledo in 1993-2002. Two components in the emission- line profile variations, a long-term and a periodic one, are found. The periodic component is represented by changes of the mean radial velocity of the Ha line with a period of 205 days, which is most likely related to the orbital motion in a binary system. This finding confirms a recently… Expand

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