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

Bibcode
2005A&A...439L..19P
DOI
10.1051/0004-6361:200500149
Phan-Bao, N.; Martín, E. L.; Reylé, C.; Forveille, T.; Lim, J.
Bibliographical reference

Astronomy and Astrophysics, Volume 439, Issue 2, August IV 2005, pp.L19-L22

Advertised on:
8
2005
Journal
Astronomy and Astrophysics
Number of authors
5
IAC number of authors
1
Citations
25
Refereed citations
23
Description
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.
Type
Refereed
Binary stars

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