Title

Lithium Depletion In The Brown Dwarf Binary Gj 569Bab

Keywords

Binaries: general; Brown dwarfs; Stars: Low-mass

Abstract

GJ 569Bab is the first brown dwarf binary for which the mass of each component has been derived by solving the astrometric and spectroscopic orbit of the pair, i.e., independently of any theoretical assumption. This allows us to test the predictions of the various evolutionary models available in the literature. Particularly interesting are the predictions of lithium depletion for the mass (0.08-0.05 M⊙) and likely age (300-800 Myr) of the substellar components. High-resolution optical spectra of GJ 569B (the pair is not resolved) obtained with HIRES at the Keck telescope show that there has been significant lithium depletion in both components. We will compare these results to state-of-the-art theoretical calculations. ©2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Publication Date

1-1-2005

Publication Title

Astronomische Nachrichten

Volume

326

Issue

10

Number of Pages

848-851

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/asna.200510460

Socpus ID

29844456512 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/29844456512

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