The Volume-limited A-Star (VAST) survey - I. Companions and the unexpected X-ray detection of B6-A7 stars
De Rosa, R. J; Bulger, J; Patience, J; Leland, B; Macintosh, B A; Schneider, A; Song, I; Marois, C; Graham, J; Bessell, Michael; Doyon, R
Description
With an adaptive optics imaging survey of 148 B6-A7 stars, we have tested the hypothesis that unresolved lower mass companions are the source of the unexpected X-ray detections of stars in this spectral type range. The sample is composed of 63 stars detected in X-rays within the ROSAT All Sky Survey and 85 stars that form a control sample; both subsets have the same restricted distribution of spectral type, age, X-ray sensitivity and separation coverage. A total of 68 companion candidates are...[Show more]
Collections | ANU Research Publications |
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Date published: | 2011 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/68073 |
Source: | Monthly Notices of the Royal Astronomical Society |
DOI: | 10.1111/j.1365-2966.2011.18765.x |
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01_De Rosa_The_Volume-limited_A-Star_2011.pdf | 732.64 kB | Adobe PDF | Request a copy |
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