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| Paper: |
So close, and yet so far: Bringing gas in the central 10 pc via Inner Density Waves |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
441 |
| Authors: |
Emsellem, E. |
| Abstract: |
Density waves in the central regions of galaxies, such as inner spirals, bars and/or lopsided density distributions are potential actors of the redistribution of angular momentum. They may thus play an important role in the overall evolution of the central structures, and in particular in the fueling of the nucleus, thus triggering an AGN and/or central starburst. I will present evidences for the importance of such structures using new sets of observations, including two-dimensional (OASIS/CFHT) and near-infrared long-slit (ISAAC/VLT) spectrography of active and non-active galaxies, with nuclear bars and spirals. I will also discuss the importance of (keplerian or not) m = 1 modes in the nuclear regions of galaxies, illustrating this with new observations and original N body simulations. The implications of these observations/models will be discussed in the context of AGN, central starbursts and the nuclear dynamical evolution. |
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