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Globular clusters in M31, Local Group, and external galaxies

Published online by Cambridge University Press:  09 May 2016

Søren S. Larsen
Søren S. Larsen*
Affiliation:
Department of Astrophysics/IMAPP, Radboud University, Postbus 9010, NL-6500GL, Nijmegen, the Netherlands email: s.larsen@astro.ru.nl
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Abstract

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Throughout most of the Local Group, globular clusters (GCs) remain recognisable as extended objects in ground-based images taken in good seeing conditions. However, studying the full extent of the GC systems is challenging because of the large sky area that needs to be surveyed and recent years have seen dramatic progress in our knowledge of GC populations in nearby galaxies, thanks to large imaging surveys. At the same time, techniques for deriving detailed abundances from integrated-light spectra of GCs are maturing so that detailed comparisons of the chemical composition for GCs in different galaxies can now be made. Such comparisons may shed important light on the properties of proto-galactic fragments that were accreted onto galaxy halos. Nevertheless, our census of Local Group GCs probably remains far from complete, in particular at low luminosities and for very extended clusters.

Keywords

Globular ClustersGalaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Issue S317: The General Assembly of Galaxy Halos: Structure, Origin and Evolution , August 2015 , pp. 120 - 127
Copyright
Copyright © International Astronomical Union 2016 

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