The structure of circumstellar discs of Be stars - Millimeter observations

Details The structure of circumstellar discs of Be stars - Millimeter observations The structure of circumstellar discs of Be stars - Millimeter observations

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...244..120w&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 244, no. 1, April 1991, p. 120-130. NSERC-supported research.

Astronomy and Astrophysics

Astronomy

48

Astronomical Spectroscopy, B Stars, Infrared Astronomy Satellite, Interstellar Matter, Millimeter Waves, Astronomical Models, Stellar Luminosity, Stellar Winds, Very Large Array (Vla)

Scientific paper

Millimeter-wave observations of six bright classical Be stars were made with the James Clerk Maxwell Telescope. All stars exhibit an mm-cm spectral index that is steeper than the IRAS (12-60 micron) spectral index, indicating a turnover in the continuum energy distribution. It is suggested that this turnover may be caused by a change in the geometry of the disk or by an additional outward acceleration of the material at a large distance from the star.

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