Milli-arcsecond Binaries
Astrophysics
2008-04-28 v1
Abstract
As part of an astrometric program, we have used the Very Long Baseline Array to measure the trigonometric parallax of several young stars in the Taurus and Ophiuchus star-forming regions with great accuracy. Additionally, we have obtained an unprecedented sample of high-resolution (~ 1 mas) images of several young stellar systems. These images revealed that about 70% of the stars in our sample are very tight binary stars (with separations of a few mas). Since it is highly unlikely that 70% of all stars are such tight binaries, we argue that selection effects are at work.
Cite
@article{arxiv.0804.4018,
title = {Milli-arcsecond Binaries},
author = {R. M. Torres and L. Loinard and A. Mioduszewki and L. F. Rodriguez},
journal= {arXiv preprint arXiv:0804.4018},
year = {2008}
}
Comments
Proceedings ADELA 2008