Volume 439, Number 2, August IV 2005
|Page(s)||L19 - L22|
|Published online||29 July 2005|
Letter to the Editor
Discovery of a widely separated binary system of very low mass stars
Institute of Astronomy and Astrophysics, Academia Sinica, PO Box 23-141, Taipei 106, ROC, Taiwan e-mail: firstname.lastname@example.org
2 Instituto de Astrofísica de Canarias, C/ vía Láctea s/n, 38200 La Laguna (Tenerife), Spain
3 University of Central Florida, Dept. of Physics, PO Box 162385, Orlando, FL 32816-2385, USA
4 CNRS UMR6091, Observatoire de Besançon, BP 1615, 25010 Besançon Cedex, France
5 Canada-France-Hawaii Telescope Corporation, 65-1238 Mamalahoa Highway, Kamuela, HI 96743, USA
6 Laboratoire d'Astrophysique de Grenoble, Université J. Fourier, BP 53, 38041 Grenoble, France
Accepted: 3 July 2005
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´´, 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.
Key words: binary stars / very low mass stars, brown dwarfs / individual star: DENIS-P J0410-1251, LP 714-37
© ESO, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.