Debris disks and multiplicity within the 75pc volume-limited A-Star (VAST) survey
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Authors
De Rosa, R. J.
Smith, B.
Bulger, J.
Patience, J.
Marois, C.
Song, I.
Macintosh, B.
Graham, J.
Doyon, R.
Bessell, M.
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Cambridge University Press
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Abstract
We present the preliminary findings of an investigation of the multiplicity of debris disk stars identified within our Volume-limited A-star (VAST) multiplicity survey. Previous studies have produced conflicting results regarding the multiplicity fraction of debris disk-hosting stars compared with non-excess stars. By combining our large-scale volume-limited AO survey of A-type stars with the all-sky WISE catalogue, we have investigated the frequency of binary companions to a large sample of A-type stars with and without measured 22μm excess. The results of this study will allow for a greater understanding of the interaction between a companion star and a circumstellar debris disk, informing future study into the formation and stability of planetary-mass companions within binary systems.
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Exploring the Formation and Evolution of Planetary Systems
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Publication