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The ages of L dwarfs

journal contribution
posted on 2023-05-17, 14:30 authored by Jameson, RF, Lodieu, N, Casewell, SL, Bannister, NP, Dobbie, PD
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.

History

Publication title

Monthly Notices of the Royal Astronomical Society

Volume

385

Issue

4

Pagination

1771-1778

ISSN

0035-8711

Department/School

School of Natural Sciences

Publisher

Blackwell Publishing Ltd

Place of publication

9600 Garsington Rd, Oxford, England, Oxon, Ox4 2Dg

Rights statement

Copyright 2008 The Authors. Journal compilation copyright? 2008 RAS.

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  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

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