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Ages and Metallicities of Globular Clusters in NGC 5128

Published online by Cambridge University Press:  03 August 2017

Enrico V. Held ,
Luciana Federici ,
Carla Cacciari  and
Vincenzo Testa
Enrico V. Held
Affiliation:
Osservatorio Astronomico di Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy
Luciana Federici
Affiliation:
Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna, Italy
Carla Cacciari
Affiliation:
Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna, Italy
Vincenzo Testa
Affiliation:
Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monte Porzio Catone, Italy

Abstract

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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.

Type
Part 2. Globular Cluster Systems of Distant Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 269 - 274
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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