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The Gas-rich Circumbinary Disk of HR 4049. II. A Detailed Study of the Near-infrared Spectrum

Authors
Type
Published Article
Journal
The Astrophysical Journal
Publisher
American Astronomical Society
Publication Date
Oct 19, 2014
Volume
794
Issue
2
Pages
113–113
Source
SETI Institute
License
Unknown

Abstract

HR 4049 is a peculiar evolved binary surrounded by a circumbinary disk. Mid- infrared observations show that the disk is rich in molecular gas and radially extended. To study the properties of this disk, we re-analyzed a set of near-infrared observations at high spectral resolution obtained with Gemini-Phoenix. These data cover absorption lines originating from the first overtone of CO and from H 2 O in the 2.3 μm region as well as more complex emission-absorption profiles from H 2 O and the fundamental mode of CO near ...

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