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Building Galactic Disks in Triaxial Dark Matter Halos

Published online by Cambridge University Press:  01 August 2006

Isaac Shlosman
Isaac Shlosman*
Affiliation:
Department of Physics & Astronomy, University of Kentucky, Lexington, KY 40506, USA email: [email protected]
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Abstract

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We review our recent work on the formation and evolution of disks within triaxial dark matter (DM) halos by means of numerical simulations, including star formation and feedback from stellar evolution. The growing disks are strongly influenced 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.

Keywords

galaxies: evolution–galaxies: formation — galaxies: halos – galaxies: kinematics and dynamics – galaxies: starburst – galaxies: structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S235: Galaxy Evolution Across the Hubble Time , August 2006 , pp. 24 - 28
Copyright
Copyright © International Astronomical Union 2007

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