High resolution observations of stars in the peculiar globular cluster Omega CEN

Details High resolution observations of stars in the peculiar globular cluster Omega CEN High resolution observations of stars in the peculiar globular cluster Omega CEN

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26as...71..591s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 71, no. 3, Dec. 1987, p. 591-596.

Astronomy and Astrophysics

Astrophysics

19

Centaurus Constellation, Globular Clusters, High Resolution, Peculiar Stars, Star Distribution, Abundance, Data Reduction, Spectrum Analysis, Stellar Spectra

Scientific paper

Spectra of stars in the Omega Cen globular cluster, labeled Omega Cen-65, -74, -91, -139, -256, and -270 in the ROA catalogue (1966), were obtained in June 1984 and June 1985 with the CASPEC spectrograph fed by the 3.60-m telescope at the ESO. The spectra were reduced on the VAX8600 computer using an automatic program derived from a code written by Spite (1980). The equivalent widths of the lines were obtained using a code which assumes that the profiles of the stellar lines can be represented by a Gaussian curve. The results for each species and the wave length used are presented in tabulated form, showing the equivalent widths and the deduced abundances of 16 clue elements.

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