Debris disks and multiplicity within the 75pc volume-limited A-Star (VAST) survey

R. J. De Rosa, B. Smith, J. Bulger, J. Patience, C. Marois, I. Song, B. Macintosh, J. Graham, R. Doyon, M. Bessell

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    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.

    Original languageEnglish
    Title of host publicationExploring the Formation and Evolution of Planetary Systems
    PublisherCambridge University Press
    Pages334-335
    Number of pages2
    EditionS299
    ISBN (Print)9781107045200
    DOIs
    Publication statusPublished - Jun 2013

    Publication series

    NameProceedings of the International Astronomical Union
    NumberS299
    Volume8
    ISSN (Print)1743-9213
    ISSN (Electronic)1743-9221

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