218 articles – 619 Notices  [english version]
 HAL : in2p3-00014069, version 1
 arXiv : astro-ph/9905162
 Astronomy and Astrophysics 351 (1999) L5-L9
 EROS 2 proper motion survey: a field brown dwarf and an L dwarf companion to LHS 102
 EROS Collaboration(s)
 (1999)
 We report the discovery of two L dwarfs (the new spectral class defined for dwarfs cooler than the M type) in a two-epoch CCD proper motion survey of 413 square degrees, complemented by infrared photometry from DENIS. One of them has a strong lithium line and is therefore a brown dwarf. The other is a common proper motion companion to the mid-M dwarf LHS 102 (GJ 1001), which has a well determined trigonometric parallax. LHS 102B is thus the coolest L dwarf of known distance and luminosity. Its infrared absolute photometry are very well reproduced by the Allard et al DUSTY models.
 Thème(s) : Physique/Astrophysique/Cosmologie et astrophysique extra-galactique
 Lien vers le texte intégral : http://fr.arXiv.org/abs/astro-ph/9905162
 in2p3-00014069, version 1 http://hal.in2p3.fr/in2p3-00014069 oai:hal.in2p3.fr:in2p3-00014069 Contributeur : Simone Lantz <> Soumis le : Vendredi 17 Octobre 2003, 16:17:50 Dernière modification le : Vendredi 17 Octobre 2003, 16:17:50