35th Meeting of the AAS Division on Dynamical Astronomy, April 2004
Session 3 Stars \& Galaxies
Oral, Wednesday, April 21, 2004, 2:15-6:20pm,

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[3.05] Dynamical Evolution of Barred Galaxies

E. Athanassoula (Observatoire de Marseille)

I will discuss the formation and evolution of bars in disc galaxies. During this process, angular momentum is emitted (mainly) from the resonances in the inner disc, i.e. the bar region, and absorbed (mainly) from the resonances in the outer disc and halo. As a result, the bar slows down and becomes stronger, while the inner halo develops a triaxial structure rotating with the same angular velocity as the disc bar. High resolution N-body simulations will be used to get quantitative estimates of the effects of the resonances.

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Bulletin of the American Astronomical Society, 36 #2
© 2004. The American Astronomical Soceity.