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Oxford University Press, Monthly Notices of the Royal Astronomical Society, 4(296), p. L42-L44, 1998

DOI: 10.1046/j.1365-8711.1998.01642.x

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The Intermediate Age Brown Dwarf LP 944-20

Journal article published in 1998 by C. G. Tinney ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Observations are presented which show that LiI 6708A is detected with equivalent width of 0.53+-0.05A in the proper-motion object LP 944-20 (which is also known as BRI 0337-3535). This Li detection implies that LP 944-20 is a brown dwarf with mass between 0.057 and 0.063Mo and age between 475 and 650Myr, making it the first brown dwarf to have its mass and age precisely determined. ; Comment: 3 pages, 2 figures