Effect of the Environment on the Fundamental Plane of Elliptical Galaxies

Preprint

15 July 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0007215

Abstract

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.

Keywords

ELLIPTICAL GALAXIES
SPHERICAL GALAXIES
FUNDAMENTAL PLANE
GALAXIES LOCATION
CLOSE ENCOUNTERS
INTERACTING E/S0
CENTRAL DENSITY

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Version 1, 2000-07-15, ArXiv

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