Research Group "Origin and Evolution of Galaxies"

Institut d'Astrophysique de Paris

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Summary of a journal-club Date Subject Presented by 24 may 2007 Bursty stellar populations and obscured AGN in local galaxy bulges: an SDSS perspective A popular model for the coevolution of bulges and supermassive black holes is one in which a galaxy merger leads to the inflow of gas which fuels a strong starburst, followed by an AGN phase in which the black hole grows significantly. I will present some recent results on the stellar populations of AGN hosts in the SDSS spectroscopic galaxy catalogue, which use a new, high signal-to-noise ratio spectral diagnostic of recent star formation history. Vivienne Wild MPA, Garching Image : D1 Deep Field from the Legacy Survey of the Canada-France-Hawaï Telescope (CFHTLS) TERAPIX Data Processing Center (CNRS/INSU - IAP - CEA)