Near-IR coronagraphic imaging of the companion to HR 7672

Details Near-IR coronagraphic imaging of the companion to HR 7672 Near-IR coronagraphic imaging of the companion to HR 7672

2003-08-25

arxiv.org/abs/astro-ph/0308426v1

Astron.Astrophys.410:283-288,2003

Astronomy and Astrophysics

Astrophysics

6 pages, 9 figures, to be published in Astronomy and Astrophysics

Scientific paper

10.1051/0004-6361:20031216

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 \citet{liu02}. We obtained additional photometry in $J$($1.2\mu m$), $H$($1.6\mu m$) and $K_s$ ($2.2\mu m$) bands to cover the full near-IR domain and hence to further constrain the nature of the companion. A mass estimate of 58-71$ \mathrm{M_J}$ is derived from evolutionary models of very low-mass objects.

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