| Issue |
A&A
Volume 410, Number 1, October IV 2003
|
|
|---|---|---|
| Page(s) | 283 - 288 | |
| Section | Stellar structure and evolution | |
| DOI | https://doi.org/10.1051/0004-6361:20031216 | |
| Published online | 17 November 2003 | |
Near-IR coronagraphic imaging of the companion to HR 7672*
1
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: gael.chauvin@obs.ujf-grenoble.fr; anne-marie.lagrange@obs.ujf-grenoble.fr
3
University of California at Berkeley, Department of Astronomy, 601 Campbell Hall, Berkeley, CA 94720, USA e-mail: fmarchis@astron.berkeley.edu
Corresponding author: A. Boccaletti, Anthony.Boccaletti@obspm.fr
Received:
1
April
2003
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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