Effect of the Environment on the Fundamental Plane of Elliptical Galaxies

Details Effect of the Environment on the Fundamental Plane of Elliptical Galaxies Effect of the Environment on the Fundamental Plane of Elliptical Galaxies

2000-07-15

arxiv.org/abs/astro-ph/0007215v1

Astronomy and Astrophysics

Astrophysics

Poster presented at JENAM-2000 (Joint European and National Astronomical meeting - S02. Morphology and dynamics of stellar sys

Scientific paper

We present an analysis of interacting E/S0 galaxies location on the Fundamental Plane. Using the NEMO package, we performed N-body simulations of close encounters and mergers between two spherical galaxies. We followed how structural and dynamical parameters (central density, half-mass radius and velocity dispersion)of galaxies are changed during the encounter. We analysed the dependence of these changes on initial mass concentration and presence of dark halo. The results of our simulations are used to discuss the Fundamental Plane for interacting early-type galaxies.

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