Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26as...68...21g&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 68, no. 1, Feb. 1987, p. 21-31.
Astronomy and Astrophysics
Astrophysics
10
Giant Stars, Globular Clusters, Late Stars, Metallicity, Stellar Spectra, Abundance, Spectral Line Width, Stellar Atmospheres
Scientific paper
Observations of giants in five metal rich globular clusters, obtained in October 1984 and June 1985 using the CASPEC spectrograph of the 3.6-m ESO telescope at La Silla, are presented, and equivalent widths for about 100 lines in each spectra were obtained using a line integration code. S/N ratios ranged from about 50 for the fainter globular cluster stars to greater than 100 for the Alpha Boo spectra. Equivalent widths measured in the Alpha Boo spectra were found to be generally larger by about 20 mA than those obtained by Maeckle et al. (1975), due to the lower resolution of the present spectra.
Gratton Raffaele G.
Ortolani Sergio
Quarta M. L.
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