Discovery of a widely separated binary system of very low mass stars
Astrophysics
2009-11-13 v2
Abstract
We report our discovery of a nearby wide binary system, LP 714-37 AB. Phan-Bao et al. identified LP 714-37 as a mid-M dwarf during a cross-identification of the NLTT and DENIS catalogues. Our CCD images resolve the system into a binary with a projected angular separation of 1.8 arcsec, or 33 AU, and low-resolution optical spectra give spectral types of M5.5 (LP 714-37A) and M7.5 (LP 714-37B). This makes LP 714-37 AB one of very few widely separated (separation > 30 AU) very low-mass binary systems known in the field, and we discuss it in the context of the multiplicity properties of very low-mass stars and brown dwarfs.
Cite
@article{arxiv.astro-ph/0506621,
title = {Discovery of a widely separated binary system of very low mass stars},
author = {N. Phan-Bao and E. L. Martin and C. Reyle and T. Forveille and J. Lim},
journal= {arXiv preprint arXiv:astro-ph/0506621},
year = {2009}
}
Comments
Accepted by A&A Letters