The many faces of early-type dwarf galaxies

Lisker, T. ; Grebel, E. K. ; Binggeli, B. ; Vodička, M. ; Glatt, K. ; Westera, P.

In: Proceedings of the International Astronomical Union, 2006, vol. 2, no. S241, p. 409-413

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    We present a study of 413 early-type dwarf (dE) galaxies in the Virgo Cluster with SDSS multicolour imaging. Several dE subclasses show systematic differences in shape, clustering properties, and stellar content. We find different colour-magnitude relations for nucleated and non-nucleated dEs, as well as for dE samples populating regions of different densities