The Last Stages of Star Formation in dEs?

Lisker, T. ; Glatt, K. ; Westera, P. ; Grebel, E. K.

In: Proceedings of the International Astronomical Union, 2006, vol. 2, no. S235, p. 317-317

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    A significant fraction of Virgo cluster early-type dwarf galaxies have blue central colours caused by recent or ongoing star formation. A spectral analysis shows that even in their centers, stellar mass is dominated by an old population. These galaxies are an unrelaxed cluster population that possibly formed from morphological transformation of late-type galaxies