Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12..710b&link_type=abstract
The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August
Astronomy and Astrophysics
Astrophysics
2
Β Pictoris, Fuse, Stellar Atmospheres, Circumstellar Material
Scientific paper
The FUSE satellite revealed the first emission line spectrum of β Pictoris. Broad emission lines due to highly ionized species, C III and O VI, are well detected above the very low continuum level. The mere presence of such lines in β Pictoris spectrum is evidence of a complex stellar environment, including dense and hot regions, within a few stellar radii of the photosphere. Based on the intepretation of the apparent structure of the lines profiles, it has been concluded that accretion and solar-like activity are the most likely processes for the gas heating. We present the results we obtained with a model including a solar-like extended chromosphere-corona complex and a weak wind.
Bouret Jean-Claud
Deleuil Magali
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