Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26as..128..475j&link_type=abstract
Astronomy and Astrophysics Supplement, v.128, p.475-483
Astronomy and Astrophysics
Astrophysics
8
Stars: Emission Line, Be, Stars Peculiar Stars: Hd 50138
Scientific paper
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. Table 2 is only available in electronic form at the CDS via anonymous ftp. 130.79.128.5 or via http://cdsweb.u-strasbg.fr/Abstract.html
Andrillat Yvette
Jaschek Carlos
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