A search for wide brown dwarf companions to stars within 10pc
Astrophysics
2009-11-13 v1
Abstract
We present the first results of a large imaging survey to identify wide brown dwarf companions to stars within 10 pc. We have performed a deep (H-band limit ~ 19.0 mag), wide field (up to 16x16 arcmin) astrometric imaging campaign in two epochs around more than 230 nearby stars. Preliminary results show that the wide low-mass companion fraction is far lower than expected, indicating that interactions with the galactic disk may have removed the weakly bound wide companions around old stars.
Cite
@article{arxiv.0811.2486,
title = {A search for wide brown dwarf companions to stars within 10pc},
author = {Marin Treselj and Andreas Seifahrt and Klaus-Werner Hodapp and Ana Bedalov and Markus Mugrauer},
journal= {arXiv preprint arXiv:0811.2486},
year = {2009}
}
Comments
To appear in proceedings of Cool Stars XV Conference, 3 pages