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The inner workings of early-type galaxies: cores, nuclei and supermassive black holes

Published online by Cambridge University Press:  01 August 2006

Laura Ferrarese  and
Patrick Côté
Laura Ferrarese
Affiliation:
National Research Council of Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC, V9E 2E7, Canada email: laura.ferrarese@nrc-cnrc.gc.ca, patrick.cote@nrc-cnrc.gc.ca
Patrick Côté
Affiliation:
National Research Council of Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC, V9E 2E7, Canada email: laura.ferrarese@nrc-cnrc.gc.ca, patrick.cote@nrc-cnrc.gc.ca
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Abstract

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Recent years have seen dramatic progress in the study of the core and nuclear properties of galaxies. The structure of the cores has been shown to vary methodically with global and nuclear properties, as cores respond to the mechanisms by which galaxies form/evolve. The dynamical centers of galaxies have been found capable of hosting two seemingly disparate objects: supermassive black holes (SBHs) and compact stellar nuclei. In a drastic departure from previous beliefs, it has been discovered that both structures are common: galaxies lacking SBHs and/or stellar nuclei are the exception, rather than the norm. This review explores the connection between cores, SBHs and stellar nuclei in early-type galaxies, as revealed by the ACS Virgo Cluster Survey.

Keywords

Galaxies: elliptical and lenticularcD – galaxies: dwarf – galaxies: fundamental parameters – galaxies: photometry – galaxies: structure – galaxies: nuclei – galaxies: bulges
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S238: Black Holes from Stars to Galaxies – Across the Range of Masses , August 2006 , pp. 261 - 268
Copyright
Copyright © International Astronomical Union 2007

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