Volume 410, Number 1, October IV 2003
|Page(s)||283 - 288|
|Section||Stellar structure and evolution|
|Published online||17 November 2003|
Near-IR coronagraphic imaging of the companion to HR 7672*
LESIA, Observatoire de Paris-Meudon, 5 Pl. J. Janssen, 92195 Meudon, France
2 Laboratoire d'Astrophysique de l'Observatoire de Grenoble, BP 53, 38041 Grenoble Cedex 9, France e-mail: firstname.lastname@example.org; email@example.com
3 University of California at Berkeley, Department of Astronomy, 601 Campbell Hall, Berkeley, CA 94720, USA e-mail: firstname.lastname@example.org
Corresponding author: A. Boccaletti, Anthony.Boccaletti@obspm.fr
Accepted: 30 July 2003
This article presents coronagraphic images of the low-mass companion to the star HR 7672 observed at the Palomar 200 inch telescope and first detected at Gemini and Keck in the K band by [CITE]. We obtained additional photometry in J(m), H(m) and Ks (m) bands to cover the full near-IR domain and hence to further constrain the nature of the companion. A mass estimate of 58-71 is derived from evolutionary models of very low-mass objects.
Key words: stars: individual: HR7672 / stars: low-mass, brown dwarfs / instrumentation: adaptive optics / techniques: high angular resolution / techniques: image processing
© ESO, 2003
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