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The VAST survey - IV. a wide brown dwarf companion to the A3V star ζ Delphini

De Rosa, R. J.; Patience, J.; Ward-Duong, K.; Vigan, A.; Marois, C.; Song, I.; Macintosh, B.; Graham, J. R.; Doyon, R.; Bessell, M. S.; Lai, O.; McCarthy, D. W.; Kulesa, C.

Description

We report the discovery of a wide comoving substellar companion to the nearby (D = 67.5 ± 1.1 pc) A3V star ζ Delphini based on imaging and follow-up spectroscopic observations obtained during the course of our Volume-limited A-Star (VAST) multiplicity survey. ζ Del was observed over a five-year baseline with adaptive optics, revealing the presence of a previously unresolved companion with a proper motion consistent with that of the A-type primary. The age of the ζ Del system was estimated as...[Show more]

CollectionsANU Research Publications
Date published: 2014-10-01
Type: Journal article
URI: http://hdl.handle.net/1885/13071
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu2018

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