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The ages of L dwarfs


Jameson, RF and Lodieu, N and Casewell, SL and Bannister, NP and Dobbie, PD, The ages of L dwarfs, Monthly Notices of the Royal Astronomical Society, 385, (4) pp. 1771-1778. ISSN 0035-8711 (2008) [Refereed Article]

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Copyright 2008 The Authors. Journal compilation copyright 2008 RAS.

DOI: doi:10.1111/j.1365-2966.2008.12973.x


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.

Item Details

Item Type:Refereed Article
Keywords:stars: low-mass, brown dwarfs; open clusters and associations: general
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Stellar astronomy and planetary systems
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Dobbie, PD (Dr Paul Dobbie)
ID Code:81043
Year Published:2008
Web of Science® Times Cited:14
Deposited By:Mathematics and Physics
Deposited On:2012-11-21
Last Modified:2012-12-14

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