Velocity fields of distant galaxies with FORS2 at the VLT
Cosmology and Nongalactic Astrophysics
2009-07-31 v1
Abstract
We describe a method to efficiently obtain two-dimensional velocity fields of distant, faint and small, emission-line galaxies with FORS2 at the VLT. They are examined for kinematic substructure to identify possible interaction processes. Numerical simulations of tidal interactions and ram-pressure effects reveal distinct signatures observable with our method. We detect a significant fraction of galaxies with irregular velocity fields both in the field and cluster environments.
Keywords
Cite
@article{arxiv.0907.5301,
title = {Velocity fields of distant galaxies with FORS2 at the VLT},
author = {Bodo L. Ziegler and Elif Kutdemir and Cristiano Da Rocha and Asmus Böhm and Wolfgang Kapferer and Harald Kuntschner and Reynier F. Peletier and Sabine Schindler and Miguel Verdugo},
journal= {arXiv preprint arXiv:0907.5301},
year = {2009}
}
Comments
To appear in ESO Messenger, issue September 2009