Building Galactic Disks in Triaxial Dark Matter Halos

Details Building Galactic Disks in Triaxial Dark Matter Halos Building Galactic Disks in Triaxial Dark Matter Halos

2006-10-24

arxiv.org/abs/astro-ph/0610727v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, invited talk at IAU Symp. 235 on Galaxy Evolution Across the Hubble Time, F. Combes and J. Palous (eds.),

Scientific paper

10.1017/S1743921306004984

We review our recent work on the formation and evolution of disks with in triaxial dark matter (DM) halos by means of numerical simulations, including star formation and feedback from stellar evolution. The growing disks are strongly in fluenced by shapes of DM halos and modify them in turn. Disk parameters are in a broad agreement with those in the local universe. Gas-rich stellar bars grow in tandem with the disk and facilitate the angular momentum redistribution in the system and radial gas inflow. Nested bars appear to form as a by-product. Interactions between various non-axisymmetric components -- bars, disks and halos lead to decay of bars or washing out of ellipticity in the inner halo.

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