Spectral peculiarities of emission envelopes of Be stars γ Cas and κ Dra.

Details Spectral peculiarities of emission envelopes of Be stars γ Cas and κ Dra. Spectral peculiarities of emission envelopes of Be stars γ Cas and κ Dra.

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998kfnt...14..268k&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 14, No. 3, p. 268 - 273

Physics

1

Stellar Envelopes: Be Stars, Stellar Envelopes: Line Profiles, Stellar Envelopes: H Alpha

Scientific paper

The analysis of Hα emission lines profiles in the spectra of Be stars γ Cas and κ Dra obtained in 1987 - 1989 is presented. Variations of parameters of the line for γ Cas with a half-period about 6h are found. Radial velocities indicate that gaseous envelopes of γ Cas and κ Dra expanded in these years. Using Hα emission line, the author have obtained for the first time the radial-velocity curve of the gaseous envelope of κ Dra.

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