Dust discs around Vega-excess stars.

Details Dust discs around Vega-excess stars. Dust discs around Vega-excess stars.

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992dudi.work..172s&link_type=abstract

"Dusty Discs, Proceedings of the 9th RAL Workshop on Astronomy and Astrophysics. Edited by P.M. Gondhalekar.

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

The observational evidence for dusty discs around main sequence stars is reviewed, and the discs discussed in terms of their fractional luminosity Ldust/L*. New values of this quantity indicate that a substantial range (10-5-0.5) exists among Vega-excess stars. The observational requirements for determining dust masses are outlined. Details of a modelling method developed by the authors are given, and results presented. It is shown that photometry over a wide range of wavelengths as well as infrared spectroscopy are needed in order to constrain the models uniquely.

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