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The Volume-limited A-Star (VAST) survey - II. Orbital motion monitoring of A-type star multiples

De Rosa, R. J; Patience, J; Vigan, A; Wilson, P. A.; Schneider, A; McConnell, N. J.; Wiktorowicz, S. J.; Marois, C; Song, I; Macintosh, B A; Bessell, Michael


As a part of our ongoing Volume-limited A-Star (VAST) adaptive optics survey, we have obtained observations of 26 binary systems with projected separations <100 au, 13 of which have sufficient historical measurements to allow for refinement of their orbital elements. For each system with an estimated orbit, the dynamical system mass obtained was compared with the system mass estimated from mass-magnitude relations. Discrepancies between the dynamical and theoretical system mass can be explained...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2011.20397.x
Access Rights: Open Access


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