A spectroscopic survey of the giant branch of M5

Details A spectroscopic survey of the giant branch of M5 A spectroscopic survey of the giant branch of M5

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218...96z&link_type=abstract

Astrophysical Journal, Part 1, vol. 218, Nov. 15, 1977, p. 96-104.

Astronomy and Astrophysics

Astrophysics

33

Giant Stars, Globular Clusters, Late Stars, Stellar Spectrophotometry, Abundance, Astronomical Catalogs, Spectral Bands, Stellar Evolution, Stellar Magnitude

Scientific paper

Spectrograms of 50 stars in the globular cluster M5 have been examined for spectral peculiarities. It was found that the majority of the asymptotic-branch stars have very weak G bands. Weak-G-band stars are not found near the tip of the giant branch. There is no evidence to suggest that metal lines of the weak-G-band stars are unusually weak. The CN stars in M5 have a uniform population in that part of the giant branch which has been surveyed. The CN stars have much weaker CN bands than the CN stars and CH stars in omega Cen.

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