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Dynamical friction in colliding galaxies

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Effects of dynamical friction have been studied in a head-on collision between two galaxies. The galaxies are represented by Plummer's model of various masses and scale lengths. Analytical expressions are obtained for changes in the binding energies of the galaxies due to the tidal effects and numerical results are given for various pairs of colliding galaxies.

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Ahmed, F. Dynamical friction in colliding galaxies. Astrophys Space Sci 60, 493–503 (1979). https://doi.org/10.1007/BF00644348

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  • Tidal Effect
  • Dynamical Friction