Abstract
We have investigated the force of dynamical friction on a soft- ened point mass orbiting inside a disc galaxy on a planar circular orbit both analytically and by means of numerical simulations. Including a velocity dispersion large enough to stabilise the disc markedly changes the physical picture of the mechanisms producing friction, whereas the numerical value of the friction is almost unaffected. Self-gravity of the disc enhances the friction only by a moderate amount.
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Wahde, M., Donner, K.J. and Sundelius, B. (1994) MNRAS, (submitted)
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© 1996 Springer Science+Business Media Dordrecht
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Wahde, M., Donner, K.J., Sundelius, B. (1996). The Influence of Velocity Dispersion on Dynamical Friction in Stellar Discs. In: Blitz, L., Teuben, P. (eds) Unsolved Problems of the Milky Way. International Astronomical Union / Union Astronomique Internationale, vol 169. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1687-6_78
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DOI: https://doi.org/10.1007/978-94-009-1687-6_78
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