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| Paper: |
Large-Scale Gas Flows in Impacted Disk Galaxies: Results from Numerical Simulations |
| Volume: |
240, Gas and Galaxy Evolution: A Conference in Honor of the 20th Anniversary of the VLA |
| Page: |
216 |
| Authors: |
Hearn, N. C.; Lamb, S. A. |
| Abstract: |
Collisions between galaxies can produce motions in a galactic disk quite unlike those seen in isolated, quiescent disk galaxies. Radial velocities can become larger than azimuthal velocities, and a calculation of the mass or systemic velocity of a collisional disk galaxy may have substantial error if measurements are used together with the assumption of a quiescent velocity structure. Motion perpendicular to the disk plane during a collision can lead to warping in the disk, and may be important in understanding the warps observed in some galaxies. To investigate these issues, we have utilized numerical simulations of galaxy collisions. |
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