IAU Symposium Abstract S186-017P


Compressive Effects on the Galactic Globular Clusters by Gravitational Disk-Shocking


M. Shimada
Dept. of Astronomy, Kyoto Univ., Japan
< shimada5@kusastro.kyoto-u.ac.jp >



Projected images of the Galactic globular clusters are not necessarily circular but elliptical in many cases. To study the possibility that the gravitational disk-shocking is the principal cause of the observed figures, we carried out a series of numerical experiments of disk-shocking on model clusters. We have measured the axial ratios of the projected density contours of the model clusters, and have found that the disk-shocking does not produce the values of axial ratios (0.8-0.9) obtained by observations in literatures.