Nuclear Star Clusters

Details Nuclear Star Clusters Nuclear Star Clusters

2009-10-26

arxiv.org/abs/0910.4863v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

invited talk at IAU Symp. 266 "Star Clusters: Galactic Building Blocks through Space and Time"

Scientific paper

The centers of most galaxies in the local universe are occupied by compact, barely resolved sources. Based on their structural properties, position in the fundamental plane, and integrated spectra, these sources clearly have a stellar origin. They are therefore called "nuclear star clusters" (NCs) or "stellar nuclei". NCs are found in galaxies of all Hubble types, suggesting that their formation is intricately linked to galaxy evolution. Here, I review some recent studies of NCs, describe ideas for their formation and subsequent growth, and touch on their possible evolutionary connection with both supermassive black holes and globular clusters.

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