Institute of Astronomy

Dwarf galaxies, and star clusters old and not so old - exploring the links

SpeakerTalk DateTalk Series
Gary Da Costa (Australian National University)4 October 2012Institute of Astronomy Colloquia

Abstract

In the first part of the colloquium I will use new results for the little-studied distant halo globular cluster NGC 5824 to explore the possiblity that globular clusters with internal heavy element abundance spreads represent the former nuclei of now disrupted dwarf galaxies. Then in the second part of the presentation I will discuss what recent results for ~1 Gyr old clusters in the Large Magellanic Cloud may be telling us about the origin of the ubiquitous sodium-oxygen abundance anti-correlation seen in most, if not all, Galactic globular clusters.

Presentation

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