Old stellar counter-rotating components in elliptical-spiral mergers: exploring the GalMer database
Astrophysics
2007-11-26 v1
Abstract
We investigate, by means of numerical simulations, the kinematics of elliptical-spiral merger remnants. Counterrotation can appear both in coplanar and in non-coplanar retrograde mergers, and it is mostly associated to the presence of a disk component, which preserves part of its initial spin. In turn, the external regions of the two interacting galaxies acquire part of the orbital angular momentum, due to the action of tidal forces.
Cite
@article{arxiv.0711.3693,
title = {Old stellar counter-rotating components in elliptical-spiral mergers: exploring the GalMer database},
author = {P. Di Matteo and F. Combes and A. -L. Melchior and B. Semelin},
journal= {arXiv preprint arXiv:0711.3693},
year = {2007}
}
Comments
2 pages, 2 figures. To appear in the proceedings of "Formation and Evolution of Galaxy Disks" (J. G. Funes, and E. M. Corsini eds)