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Near-IR coronagraphic imaging of the companion to HR 7672

Authors
Type
Published Article
Journal
ScienceOpen Astronomy & Astrophysics
Publisher
ScienceOpen
Publication Date
Sep 30, 2003
Volume
410
Issue
1
Pages
283–288
Source
SETI Institute
License
Unknown

Abstract

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 Liu et al.(2002). We obtained additional photometry in J ($1.2~\ mu $ m), H ($1.6~\ mu $ m) and $ K_ \ rm 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 MJ is derived from evolutionary models of very low-mass objects.

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