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An Extremely Large Excess of 18O in the Hydrogen-deficient Carbon Star HD 137613

Clayton, Geoffrey C; Herwig, Falk; Geballe, Thomas R; Asplund, Martin; Tenenbaum, Emily D; Engelbracht, Charles W; Gordon, Karl D


We report the discovery of a uniquely large excess of 18O in the hydrogen-deficient carbon (HdC) star HD 137613 based on a spectrum of the first-overtone bands of CO at 2.3-2.4 μm in which three strong absorption bands of 12C 18O are clearly present. Ban

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/430110


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