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J/A+A/441/181       Interstellar 12C/13C ratios          (Casassus+, 2005)

Interstellar 12C/13C ratios through CH+λλ3957,4232 absorption in local clouds: incomplete mixing in the ISM. Casassus S., Stahl O., Wilson T.L. <Astron. Astrophys., 441, 181 (2005)> =2005A&A...441..181C (SIMBAD/NED BibCode)
ADC_Keywords: Molecular clouds Keywords: ISM: abundances - ISM: clouds - ISM: molecules - ISM: individual objects: Coalsack - ISM: individual objects: Lupus cloud - ISM: individual objects: zeta Oph cloud Abstract: The 12C/13C isotope ratio is a tracer of stellar yields and the efficiency of mixing in the ISM. 12CH+/13CH+ is not affected by interstellar chemistry, and is the most secure way of measuring 12C/13C in the diffuse ISM. R=12C/13C is 90 in the solar system. Previous measurements of 12CH 3957.7,4232.3 and 13CH 3958.2,4232.0 absorption toward nearby stars indicate some variations in 12C/13C, with values ranging from 40 to 90 suggesting inefficient mixing. Except for the cloud toward Oph, these R values are strongly affected by noise. With UVES on the VLT we have improved on the previous interstellar 12C/13C measurements. ************************************************************************** * * * Sorry, but the author(s) never supplied the tabular material * * announced in the paper * * * ************************************************************************** File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file
Author's address: Simon Casassus,
(End) Patricia Vannier [CDS] 08-Nov-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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