| |
 |
| Paper: |
Formation of Elliptical and S0 Galaxies by Close Encounters |
| Volume: |
182, Galaxy Dynamics: A Rutgers Symposium |
| Page: |
477 |
| Authors: |
Naab, Thorsten; Burkert, Andreas |
| Abstract: |
We study a possible formation mechanism for elliptical/S0 galaxies using N-body simulations with GRAPE. A close galaxy encounter which does not lead to a merger can induce a strong bar in an initially axisymmetric disk. This bar is unstable to bending oscillations and loses angular momentum to the dark halo. After 6 Gyrs the remnant is spheroidal with a de Vaucouleurs-type surface density profile and has ellipticities and rotation properties comparable to observed elliptical/S0 galaxies: the system rotates fast (v/σ ≅ 1) and has disky isophotes. |
|
|
|
|
|
