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Extragalactic Globular Cluster Systems in the Near-IR

Published online by Cambridge University Press:  03 August 2017

Thomas H. Puzia ,
Markus Kissler-Patig ,
Jean Brodie ,
Paul Goudfrooij ,
Michael Hilker ,
Dante Minniti  and
Steve Zepf
Thomas H. Puzia
Affiliation:
Sternwarte der Universität München, Scheinerstr. 1, D-81679 München, Germany
Markus Kissler-Patig
Affiliation:
European Southern Observatory, Garching, Germany
Jean Brodie
Affiliation:
UCO/Lick Observatory, Santa Cruz, USA
Paul Goudfrooij
Affiliation:
STScI, Baltimore, USA
Michael Hilker
Affiliation:
Sternwarte der Universität Bonn, Germany
Dante Minniti
Affiliation:
Pontificia Universidad Católica, Santiago, Chile
Steve Zepf
Affiliation:
Michigan State University, East Lansing, USA

Abstract

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Extragalactic Globular Clusters are useful tracers of galaxy formation and evolution. Photometric studies of globular cluster systems beyond the Local Group are still the most popular method to investigate their physical properties, such as their ages and metallicities. However, the limitations of optical photometry are well known. The better wavelength sampling of the underlying cluster's SED using K-band photometry combined with optical passbands allows us to create colors which reduce the age-metallicity degeneracy to the largest extent. Here we report on the very first results of our near-IR photometric survey of globular cluster systems in early-type galaxies outside the Local Group.

Type
Part 2. Globular Cluster Systems of Distant Galaxies
Information
Symposium - International Astronomical Union , Volume 207: Extragalactic Star Clusters , 2002 , pp. 294 - 300
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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