Issue |
A&A
Volume 435, Number 1, May III 2005
|
|
---|---|---|
Page(s) | L5 - L8 | |
Section | Letters | |
DOI | https://doi.org/10.1051/0004-6361:200500101 | |
Published online | 25 April 2005 |
Letter to the Editor
LP 349-25: A new tight M8V binary
1
Canada-France-Hawaii Telescope Corporation, PO Box 1597, Kamuela, HI 96743, USA e-mail: Thierry.Forveille@cfht.hawaii.edu
2
Laboratoire d'Astrophysique de Grenoble, BP 53X, 38041 Grenoble Cedex, France e-mail: [Thierry.Forveille;Jean-Luc.Beuzit;Philippe.Delorme;Xavier.Delfosse;Anne-Marie.Lagrange; Guillaume.Montagnier;Christian.Perrier;Julien.Charton;Pierre.Kern]@obs.ujf-grenoble.fr
3
Observatoire de Genève, 51 Chemin des Maillettes, 1290, Switzerland e-mail: [Damien.Segransan;Michel.Mayor;Stephane.Udry]@obs.unige.ch
4
European Southern Observatory, Casilla 19001, Santiago 19, Chile e-mail: gchauvin@eso.org
5
ONERA-DOTA, 92322 Châtillon, France e-mail: [Thierry.Fusco;Jean-Marc.Conan]@onera.fr
6
Laboratoire d'Astrophysique, Observatoire Midi-Pyrénées, Tarbes, France e-mail: mouillet@bagn.obs-mip.fr
7
Laboratoire d'Études Spatiales et d'Instrumentation en Astrophysique, 5 place Jules Janssen, 92195 Meudon Cedex, France e-mail: [Pierre.Gigan;Genevieve.Michet]@obspm.fr
Received:
7
January
2005
Accepted:
19
March
2005
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.
Key words: stars: binaries: visual / stars: individual: LP 349-25 / stars: low-mass, brown dwarfs
© ESO, 2005
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