Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21943506g&link_type=abstract
American Astronomical Society, AAS Meeting #219, #435.06
Astronomy and Astrophysics
Astronomy
Scientific paper
Active Galac Nuclei (AGN) feedback is widely introduced in numerical simulations of galaxy evolution to clear the circum-nuclear gas, thus regulating star formation and preventing the formation of too many massive galaxies in the early universe. However, the impact of AGN feedback on the molecular gas is largely unexplored. Our mid and near-IR spectroscopy of radio-galaxies with fast winds of ionized gas shows that the dissipation of AGN feedback kinetic energy involves the formation and heating of large amounts of molecular gas, on galactic scales, without necessarily implying an outflow of molecular material. This poster presents observations and modeling to characterize the physical state and morpho-kinematics of the molecular gas in a sample of powerful radio galaxies, with the aim of understanding the entrainment of material in winds and ultimately how feedback processes regulate star formation and galaxy growth.
Appleton Ph.
Emonts Bjorn
Guillard Pierre
Morganti Rafaella
Ogle Pat
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