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Title:
LP 349-25: A new tight M8V binary
Authors:
Forveille, T.; Beuzit, J.-L.; Delorme, P.; Ségransan, D.; Delfosse, X.; Chauvin, G.; Fusco, T.; Lagrange, A.-M.; Mayor, M.; Montagnier, G.; Mouillet, D.; Perrier, C.; Udry, S.; Charton, J.; Gigan, P.; Conan, J.-M.; Kern, P.; Michet, G.
Affiliation:
AA(Canada-France-Hawaii Telescope Corporation, PO Box 1597, Kamuela, HI 96743, USA ; Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AB(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AC(Canada-France-Hawaii Telescope Corporation, PO Box 1597, Kamuela, HI 96743, USA; Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AD(Observatoire de Genève, 51 Chemin des Maillettes, 1290, Switzerland ), AE(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AF(European Southern Observatory, Casilla 19001, Santiago 19, Chile ), AG(ONERA-DOTA, 92322 Châtillon, France ), AH(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AI(Observatoire de Genève, 51 Chemin des Maillettes, 1290, Switzerland ), AJ(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AK(Laboratoire d'Astrophysique, Observatoire Midi-Pyrénées, Tarbes, France ), AL(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AM(Observatoire de Genève, 51 Chemin des Maillettes, 1290, Switzerland ), AN(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AO(Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, 5 place Jules Janssen, 92195 Meudon Cedex, France ), AP(ONERA-DOTA, 92322 Châtillon, France ), AQ(Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France ), AR(Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, 5 place Jules Janssen, 92195 Meudon Cedex, France )
Publication:
Astronomy and Astrophysics, Volume 435, Issue 1, May III 2005, pp.L5-L8 (A&A Homepage)
Publication Date:
05/2005
Origin:
EDP Sciences
Keywords:
stars: binaries: visual, stars: individual: LP 349-25, stars: low-mass, brown dwarfs
DOI:
10.1051/0004-6361:200500101
Bibliographic Code:
2005A&A...435L...5F

Abstract

We present the discovery of a tight M8V binary, with a separation of only 1.2 astronomical units, obtained with the PUEO and NACO adaptive optics systems, respectively at the CFHT and VLT telescopes. The estimated period of LP 349-25 is approximately 5 years, and this makes it an excellent candidate for a precise mass measurement.
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