Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:astro-ph/0609059)
· On-line Data
· References in the article
· Citations to the Article (8) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (14)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Five new very low mass binaries
Authors:
Montagnier, G.; Ségransan, D.; Beuzit, J.-L.; Forveille, T.; Delorme, P.; Delfosse, X.; Perrier, C.; Udry, S.; Mayor, M.; Chauvin, G.; Lagrange, A.-M.; Mouillet, D.; Fusco, T.; Gigan, P.; Stadler, E.
Affiliation:
AA(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France ; Observatoire de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland), AB(Observatoire de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland), AC(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France), AD(Canada-France-Hawaii Telescope Corporation, 65-1238 Mamalahoa Highway, Kamuela, HI 96743, Hawaii, USA ; Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France), AE(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France), AF(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France), AG(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France), AH(Observatoire de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland), AI(Observatoire de Genève, 51 chemin des Maillettes, 1290 Sauverny, Switzerland), AJ(European Southern Observatory, Casilla 19001, Santiago 19, Chile), AK(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France), AL(Laboratoire d'Astrophysique de Toulouse et Tarbes, BP 826, 65008 Tarbes Cedex, France), AM(ONERA-DOTA, BP 72, 29 avenue de la Division Leclerc, 92322 Châtillon Cedex, France), AN(Laboratoire d'Études Spatiales et d'Instrumentation Astrophysique, 92195 Meudon Cedex, France), AO(Laboratoire d'Astrophysique de Grenoble, BP 53, 38041 Grenoble Cedex, France)
Publication:
Astronomy and Astrophysics, Volume 460, Issue 2, December III 2006, pp.L19-L22 (A&A Homepage)
Publication Date:
12/2006
Origin:
EDP Sciences
Keywords:
binaries: visual, stars: low-mass, brown dwarfs, techniques: high angular resolution, instrumentation: adaptive optics
DOI:
10.1051/0004-6361:20066120
Bibliographic Code:
2006A&A...460L..19M

Abstract

We report the discovery of companions to 5 nearby late M dwarfs (>M5), LHS1901, LHS4009, LHS6167, LP869-26 and WT460, and we confirm that the recently discovered mid-T brown dwarf companion to SCR1845-6357 is physically bound to that star. These discoveries result from our adaptive optics survey of all M dwarfs within 12 pc. The new companions have spectral types M5 to L1, and orbital separations between 1 and 10 AU. They add significantly to the number of late M dwarfs binaries in the immediate solar neighbourhood, and will improve the multiplicity statistics of late M dwarfs. The expected periods range from 3 to 130 years. Several pairs thus have good potential for accurate mass determination in this poorly sampled mass range.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints