Apparent Rotation of the Galactic Globular Cluster System
Abstract
The author uses the radial velocities of galactic globular clusters, corrected for solar motion to calculate their apparent angular momentum. Comparing the apparent angular momentum with a numerical simulation the author shows, with 90% confidence, that the globular cluster system is in prograde rotation. The distribution of angular momentum with Fe/H reveals three distinct groups of clusters with different kind of rotation.
- Publication:
-
The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies
- Pub Date:
- 1988
- Bibcode:
- 1988IAUS..126..521C