Interaction between the Galaxies IC 2163 and NGC 2207

Kaufman, M., Elmegreen, D.M., Brinks, E., Elmegreen, B. and Sundin, M. (1994) Interaction between the Galaxies IC 2163 and NGC 2207. In: UNSPECIFIED.

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VLA HI observations of the interacting pair IC 2163/NGC 2207 are presented. The velocity and structural anomalies of IC 2163 agree with predictions of N-body galaxy encounter simulations if IC 2163 recently underwent a strong, prograde, in-plane encounter with NGC 2207. The velocity disturbances in NGC 2207 suggests that the main tidal force on NGC 2207 was perpendicular to the disk of NGC 2207.