Title

Discovery of a widely separated binary system of very low mass stars

Authors

Authors

N. Phan-Bao; E. L. Martin; C. Reyle; T. Forveille;J. Lim

Comments

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Abbreviated Journal Title

Astron. Astrophys.

Keywords

binary stars; very low mass stars, brown dwarfs; individual star :; DENIS-P J0410-1251, LP 714-37; HUBBLE-SPACE-TELESCOPE; ADAPTIVE OPTICS SURVEY; LATE-M DWARFS; BROWN; DWARFS; SOLAR NEIGHBORHOOD; ULTRACOOL DWARFS; MAIN-SEQUENCE; MULTIPLICITY; COMPANIONS; KINEMATICS; Astronomy & Astrophysics

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 '', 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.

Journal Title

Astronomy & Astrophysics

Volume

439

Issue/Number

2

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

L19

Last Page

L22

WOS Identifier

WOS:000230883900005

ISSN

0004-6361

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