A search for close companions in Sco OB2
Astrophysics
2007-05-23 v1
Abstract
Using adaptive optics we study the binary population in the nearby OB association Scorpius OB2. We present the first results of our near-infrared adaptive optics survey among 199 (mainly) A- and B-type stars in Sco OB2. In total 151 components other than the target stars are found, out of which 77 are probably background stars. Our findings are compared with data collected from literature. Out of the remaining 74 candidate physical companions 42 are new, demonstrating that many stars A/B stars have faint, close companions.
Cite
@article{arxiv.astro-ph/0311288,
title = {A search for close companions in Sco OB2},
author = {Thijs Kouwenhoven and Anthony Brown and Hans Zinnecker and Lex Kaper and Simon Portegies Zwart and Alessia Gualandris},
journal= {arXiv preprint arXiv:astro-ph/0311288},
year = {2007}
}
Comments
to appear in the proceedings of the ESO Workshop on 'Science with Adaptive Optics', held in Garching, Germany, 16-19 September 2003, 3 pages