Francoise Combes

Gas flows in galactic nuclei

Fueling of AGN is a complex process which includes, in turn or simultaneously, positive and 
negative feedback on star formation. Massive molecular outflows have been reported in 
galaxies hosting a starburst and/or an AGN. The large gas masses involved are able to impact 
significantly the evolution of the host galaxy, in quenching nuclear star formation, or black hole 
accretion.  Recent progress in both observations and numerical simulations will be reviewed, in 
comparison with models regulating the symbiotic bulge and SMBH growth.