Do AGN suppress star formation in early-type galaxies?
arXiv:1002.1486
Abstract
The observation that AGN host galaxies preferentially inhabit the "green valley" between the blue cloud and the red sequence has significant consequences for our understanding of the co-evolution of galaxies and black holes via accretion events. I discuss the interpretation of green valley AGN host galaxy colours with particular focus on early-type galaxies.
3 pages. Proceedings of "Accretion and Ejection in AGN: a global view", Como, Italy, ASP Conference Series, Eds: L. Maraschi, G. Ghisellini, R. Della Ceca and F. Tavecchio