Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...307..385j&link_type=abstract
Astronomy and Astrophysics, v.307, p.385-390
Astronomy and Astrophysics
Astrophysics
29
Galaxies: Individual: Ngc 5128, Star Clusters: Abundances
Scientific paper
We have carried out spectrophotometry in the range 3600-9700A of five globular clusters in NGC 5128 for which previous photometric studies suggested a high metal content. We compare the equivalent widths of a set of metallic features of the NGC 5128 clusters with those of well-studied Galactic and M31 globular clusters. This enables us to derive a reliable ranking and estimate of the metallicity for the NGC 5128 clusters. The reddening is obtained from the comparison of the continuum distribution of the observed clusters with those of reference clusters. The present spectroscopic study clarifies the question raised in the photometric studies about the NGC 5128 clusters metallicities. We conclude that, in the present NGC 5128 sample, no object has actually a metallicity higher than solar, unlike what happens in M31.
Alloin Danielle
Bica Eduardo
Jablonka Pascale
Pelat Didier
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