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Curve-of-Growth Analysis of a Red Giant in M 67

Published online by Cambridge University Press:  14 August 2015

R. Griffin
R. Griffin*
Affiliation:
Cambridge University, U.K.

Abstract

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A coudé spectrogram of a red giant (IV-202) in M 67 has been analyzed with respect to Arcturus by the differential curve-of-growth method. The overall metal abundance is found to be approximately twice that in Arcturus, i.e. half the solar value. The error limits exclude the interpretation that IV-202 is ‘super-metal-rich’. According to other observational evidence, IV-202 is quite typical of the red giants in M 67.

Type
Part V/Abundances in Stellar Populations
Information
Symposium - International Astronomical Union , Volume 72: Abundance Effects in Classification , 1976 , pp. 213
Copyright
Copyright © Reidel 1976 

References

Griffin, R.: 1975, Monthly Notices Roy. Astron. Soc. 171, 181.Google Scholar