Journal Article

A H<sup>13</sup>CN/HN<sup>13</sup>C linelist, model atmospheres and synthetic spectra for carbon stars

G. J. Harris, F. C. Larner, J. Tennyson, B. M. Kaminsky, Ya. V. Pavlenko and H. R. A. Jones

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 390, issue 1, pages 143-148
Published in print October 2008 | ISSN: 0035-8711
Published online October 2008 | e-ISSN: 1365-2966 | DOI:
A H13CN/HN13C linelist, model atmospheres and synthetic spectra for carbon stars

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A linelist of vibration–rotation transitions for 13C substituted HCN is presented. The linelist is constructed using known experimental levels where available, calculated levels and ab initio line intensities originally calculated for the major isotopologue. Synthetic spectra are generated and compared with observations for cool carbon star WZ Cas. It is suggested that high resolution HCN spectra recorded near 14 μm should be particularly sensitive to the 13C–12C ratio.

Keywords: molecular data; stars: AGB and post-AGB; stars: atmospheres; stars: carbon; infrared: stars

Journal Article.  4292 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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