Abstract
We study the dynamical behavior at the regions of resonances in N-body simulations with long-lived spiral structure. We find in several cases a main mode, the strong bisymmetric part of which ends at its 4:1 resonance region. This distance is found to be at 2.5→3 disk scale lengths. In real spiral galaxies this corresponds to the distance of termination of the observed prominent inner 2-armed spirals. In general other modes are found coexisting with the main one. In some cases they are found to be important in the outer part of the disks.
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© 1999 Springer Science+Business Media Dordrecht
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Patsis, P.A., Kaufmann, D. (1999). Signature of Density Wave Resonances in N-Body Simulations of Spiral Galaxies. In: Miyama, S.M., Tomisaka, K., Hanawa, T. (eds) Numerical Astrophysics. Astrophysics and Space Science Library, vol 240. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4780-4_20
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DOI: https://doi.org/10.1007/978-94-011-4780-4_20
Publisher Name: Springer, Dordrecht
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