Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...403.1023s&link_type=abstract
Astronomy and Astrophysics, v.403, p.1023-1029 (2003)
Astronomy and Astrophysics
Astrophysics
12
Stars: Emission Line, Be, Stars: Winds, Outflows, Technique: Interferometric
Scientific paper
Using the SIMECA code developed by Stee & Araùjo (\cite{stee1}); Stee et al. (\cite{stee2}) for Be stars we obtain a correlation between the mass loss rates {dot M} and the Brgamma continuum luminosity as a function of the opening angle of the disk. We show that this correlation is similar to those obtained by Scuderi et al. (\cite{scuderi}) for O-B supergiants. We found that the wind density at the base of the photosphere, from a sample of 8 Be stars, lies between 10-13 and 10-12 g cm-3. We also present a relationship between the mass of the circumstellar disk and the 2.16 mu m flux. Finally we emphasize how interferometric measurements can help to estimate the wind density and we present a sample of 16 Be stars with predicted visibilities that can be observed with the VLTI.
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