Physics
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982iaus...98..229a&link_type=abstract
In: Be stars; Proceedings of the Symposium, Munich, West Germany, April 6-10, 1981. (A83-10301 01-90) Dordrecht, D. Reidel Publi
Physics
4
B Stars, H Alpha Line, Infrared Spectra, Near Infrared Radiation, O Stars, Stellar Spectra, Emission Spectra, Variable Stars
Scientific paper
Oe star observations in the near infrared region, and new H-alpha profile observations are presented. Two spectra of HD 155806 were obtained in the 0.6-1.1 micron region, characterized by strong emissions of H I, He I, O I, Ca II, Fe II. These correspond to Be stars of the first type which have strong visible metallic envelopes. In addition, a study of 68 Be stars shows that the Paschen series and O I 8446 A seem to be emitting in B2e, and these emissions are present in HD 155806 and HD 60848. Finally, the 6678 A profile of He I is visible only in class BOe-B3e stars. It is concluded that Oe type and Be type (B2e or B3e) stars are similar.
Andrillat Yvette
Dennefeld Michel
Vreux Jean-Marie
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