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Ages and Metallicities of Globular Clusters in NGC 5128

  • Enrico V. Held (a1), Luciana Federici (a2), Carla Cacciari (a2) and Vincenzo Testa (a3)

Abstract

We have obtained multislit spectroscopy of 40 known globular clusters in the nearby peculiar elliptical galaxy NGC 5128 at the ESO NTT telescope. Measurements of metal and hydrogen absorption line indices have been used to estimate the age and metal content of individual clusters. The results have been combined with previous data from multifibre spectroscopy of clusters in the halo of NGC 5128 to study the age and metallicity distribution of the globular cluster system.

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Ages and Metallicities of Globular Clusters in NGC 5128

  • Enrico V. Held (a1), Luciana Federici (a2), Carla Cacciari (a2) and Vincenzo Testa (a3)

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