The proper motion measurements for 143 previously known L and T dwarfs are presented. From this sample we identify and discuss 8 high velocity L dwarfs. We also find 4 new wide common proper motion binaries/multiple systems. Using the moving cluster methods we have also identified a number of L dwarfs that may be members of the Ursa Major (age ~400 Myr), the Hyades (age ~625 Myr) and the Pleiades (age ~125 Myr) moving groups.
@article{arxiv.0710.4786,
title = {Proper motions of field L and T dwarfs},
author = {R. F. Jameson and S. L. Casewell and N. P. Bannister and N. Lodieu and K. Keresztes and P. D. Dobbie and S. T. Hodgkin},
journal= {arXiv preprint arXiv:0710.4786},
year = {2009}
}
Comments
Accepted for publication in MNRAS, 16 pages, 8 tables, 8 figures