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Are Cluster Dwarfs Recycled Galaxies?

Published online by Cambridge University Press:  26 May 2016

Christopher J. Conselice
Christopher J. Conselice*
Affiliation:
California Institute of Technology, Mail Code 105-24 Pasadena CA 91125, USA

Abstract

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Although cluster dwarf galaxies are often neglected due to their faintness, recent observations demonstrate they may be critical for understanding the physical processes behind galaxy formation. Dwarfs are the most common galaxy type and are particularly abundant in clusters. Recent observational results suggest that dwarfs in dense environments do not all form early in the universe, as expected in hierarchical structure formation models. Many of these systems appear to be younger and more metal rich than dwarfs in lower density areas, suggesting they are possibly created by a tidal process. Several general galaxy cluster observations, including steep luminosity functions and the origin of intracluster light, are natural outcomes of these processes.

Type
Part 4. Recycling
Information
Symposium - International Astronomical Union , Volume 217: Recycling Intergalactic and Interslettar Matter , 2004 , pp. 556 - 561
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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