L dwarfs in the Hyades
Astrophysics
2009-11-13 v1
Abstract
We present the results of a proper motion survey of the Hyades to search for brown dwarfs, based on UKIDSS and 2MASS data. This survey covers ~275 square degrees to depth of K~15 mag, equivalent to a mass of 0.05 solar masses assuming a cluster age of 625 Myr. The discovery of 12 L dwarf Hyades members is reported. These members are also brown dwarfs, with masses between 0.05 < M < 0.075 solar masses. A high proportion of these L dwarfs appear to be photometric binaries.
Keywords
Cite
@article{arxiv.0805.1189,
title = {L dwarfs in the Hyades},
author = {E. Hogan and R. F. Jameson and S. L. Casewell and S. L. Osbourne and N. C. Hambly},
journal= {arXiv preprint arXiv:0805.1189},
year = {2009}
}
Comments
7 pages, 4 figures, 2 tables. Accepted for publication in MNRAS