Discovery of a brown dwarf companion to the A3V star β Circini

Leigh Smith,P.W. Lucas,C. Contreras Peña,R. Kurtev,Federico Marocco,H.R.A. Jones,J.C. Beamin,Ralf Napiwotzki,J. Borissova,B. Burningham,J. Faherty,D.J. Pinfield,M. Gromadzki,V.D. Ivanov,D. Minniti, W. Stimson,V. Villanueva

Monthly Notices of the Royal Astronomical Society（2015）

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摘要

We report the discovery of an L dwarf companion to the A3V star β Circini. VVV J151721.49−585131.5, or β Cir B, was identified in a proper motion and parallax catalogue of the VISTA Variables in the Vía Láctea survey as having near-infrared luminosity and colour indicative of an early L dwarf, and a proper motion and parallax consistent with that of β Cir. The projected separation of ∼3.6 arcmin c...

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关键词

binaries: general,brown dwarfs,stars: individual: β Circini

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