Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991esasp1147.....d&link_type=abstract
Unknown
Astronomy and Astrophysics
Astronomy
25
Astronomical Maps, Beryllium, Light (Visible Radiation), Spectral Emission, Stars, Ultraviolet Spectra, Data Management, Data Processing, H Alpha Line, H Beta Line, Iue
Scientific paper
An overview of the spectral characteristics of Be stars in both the far UV and optical wavelength ranges is provided and details of their variable behavior are given when data are available. Line profiles of H alpha and/or H beta are given for the majority of these stars. The Be star variability is illustrated in the broadest possible wavelength range, from 1230 to 3030A. Because Be-Be shell transitions of Ne stars in the optical regions are spectacular and have important modeling implications, it was intended to present a complete Be and Be-shell type spectrum in the far UV. The recent phase transition of Pleione from Be-shell to Be enabled two types of spectra to be presented for the same star. Selected spectral regions containing lines of special interest for Be star modeling are presented for all the Be stars observed with the International Ultraviolet Explorer (IUE) up to 1988; that is, 166 Be stars.
Barylak Michael
Battrick Bruce
Doazan Vera
Rusconi L.
Sedmak Giorgio
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