You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
HIGH-RESOLUTION CO OBSERVATIONS OF WEAK G-BAND STARS
CHRISTOPHER SNEDEN and CATHERINE A. PILACHOWSKI
Publications of the Astronomical Society of the Pacific
Vol. 96, No. 575 (January 1984), pp. 38-43
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40678282
Page Count: 6
You can always find the topics here!Topics: Spectral bands, Stellar spectra, Giant stars, Carbon, Helium, Observational astronomy, Carbon stars, K giants, Main sequence stars, Line spectra
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
High-resolution spectra of the 2µ first-overtone CO bands in the weak G-band giants HR 6766 and 37 Com have been obtained. Synthetic spectra have been computed to obtain carbon abundances and carbon isotope ratios. There is excellent agreement between the carbon abundances derived from our CO data and those determined using features of the CH G-band. Therefore no large enrichment of helium in these stellar envelopes is likely. The ¹CO features in 37 Com are strong; a carbon isotope ratio as low as 2 is indicated for this star.
Publications of the Astronomical Society of the Pacific © 1984 The University of Chicago Press