Galaxies 09: Assembly, Gas Content and Star Formation History of Galaxies

Satoki Matsushita
ASIAA

CO View of Molecular Gas around AGNs

We performed interferometric multi-transition CO observations toward several nearby galaxies with active galactic nuclei (AGN). At a large scale (100 pc scale), our sample galaxies show linear velocity gradient near the AGN, suggesting the existences of molecular gas disks or tori rotating around the AGN. On small scales (10 pc), however, the molecular gas distribution and kinematics do not always keep the features that are seen on large scales; some show very disturbed features, some show small scale rotating features. In this talk, we will show the distribution, kinematics, and physical conditions of molecular gas around the AGN, and discuss relations between molecular gas and star formation or AGN activities.



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