LP 349-25: A new tight M8V binary

T. Forveille (1) , J.-L. Beuzit (1) , P. Delorme (1) , D. Ségransan , X. Delfosse (1) , G. Chauvin (1) , T. Fusco , A.-M. Lagrange (1) , M. Mayor , G. Montagnier (1) , D. Mouillet (1) , C. Perrier (1) , S. Udry , J. Charton (1) , P. Gigan , J.-M. Conan , P. Kern (1) , G. Michet

1 LAOG - Laboratoire d'Astrophysique de Grenoble

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.

T. Forveille, J.-L. Beuzit, P. Delorme, D. Ségransan, X. Delfosse, et al.. LP 349-25: A new tight M8V binary. Astronomy and Astrophysics - A&A, 2005, 435, pp.L5-L8. ⟨10.1051/0004-6361:200500101⟩. ⟨hal-00398115⟩