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The ages of L dwarfs

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journal contribution
posted on 24.10.2012, 09:21 by R. F. Jameson, N. Lodieu, S. L. Casewell, N. P. Bannister, P. D. Dobbie
We present a new method to derive the age of young (<0.7 Gyr) L dwarfs based on their near-infrared photometry, colours and distances. The method is based on samples of L dwarfs belonging to the Upper Sco association (5 Myr), the Alpha Per (85 Myr) and Pleiades (125 Myr) clusters, and the Ursa Major (400 Myr) and Hyades (625 Myr) moving groups. We apply our method to a number of interesting objects in the literature, including a known L dwarf binary, L dwarf companions and spectroscopic members of the young σ Orionis cluster.

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Citation

Monthly Notices of the Royal Astronomical Society, 2008, 385 (4), pp. 1771-1778

Version

VoR (Version of Record)

Published in

Monthly Notices of the Royal Astronomical Society

Publisher

Royal Astronomical Society (RAS)

issn

0035-8711

eissn

1365-2966

Copyright date

2008

Available date

24/10/2012

Publisher version

http://mnras.oxfordjournals.org/content/385/4/1771

Language

en

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