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| Paper: |
The Shapes of Elliptical Galaxies with Massive Dark Objects and Central Density Cusps |
| Volume: |
182, Galaxy Dynamics: A Rutgers Symposium |
| Page: |
142 |
| Authors: |
Ryden, Barbara S. |
| Abstract: |
For a sample of 22 core ellipticals and 22 power law ellipticals, I examine the apparent axis ratios of isophotes as a function of dynamical time. The core galaxies are significantly rounder than the power law galaxies in the region where the dynamical time is short (~ 1 Myr). In the outer regions (tdyn > 10 {Myr}), the two types have indistinguishable shape distributions. The inner isophotes of core galaxies are consistent with their being randomly oriented oblate objects, with a peak intrinsic axis ratio of γ = 0.86. The outer regions of core galaxies are inconsistent with their being randomly oriented oblate or prolate objects. |
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