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Astron. Astrophys. Suppl. Ser.
Volume 128, Number 3, March II 1998
Page(s) 475 - 483
Published online 15 March 1998
DOI: 10.1051/aas:1998392

A&A Supplement series, Vol. 128, March II 1998, 475-483

Received June 5; accepted August 1, 1997

B[e] stars

V. HD 50138 = MWC 158gif

C. Jaschektex2html_wrap492 and Y. Andrillattex2html_wrap494

Send offprint request: Y. Andrillat

tex2html_wrap496  Observatoire de Strasbourg, URA 1280, CNRS 11, rue de l'Université, 67000 Strasbourg, France
tex2html_wrap498  Laboratoire d'Astronomie Université de Montpellier 2, URA 1280 CNRS, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France


On the basis of spectroscopic CCD material obtained at the Haute Provence Observatory, we provide line identifications and equivalent width measurements in the wavelength region 3738-10232 A of the spectrum of HD 50138 Over two hundred features are identified and a comparison of our results with those of other authors is provided. We also discuss the variability of the lines using equivalent widths and descriptions of the line spectrum. We attribute as a best compromise a spectral type of B 5 III. We conclude that the gaseous shell surrounding the star has a temperature of the order of 10 000 K and that its distance to the star is of the order of two stellar radii. We discuss the relation of this star to others previously analyzed and warn against hasty generalizations.

keywords: stars: emission line, B[e] -- stars peculiar stars: HD 50138

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