Morphological Transformations of Galaxies in the A901/02 Supercluster from STAGES
Abstract
We present a study of galaxies in the Abell 901/902 Supercluster at z~0.165, based on HST ACS F606W, COMBO-17, Spitzer 24um, XMM-Newton X-ray, and gravitational lensing maps, as part of the STAGES survey. We characterize galaxies with strong externally-triggered morphological distortions and normal relatively undisturbed galaxies, using visual classification and quantitative CAS parameters. We compare normal and distorted galaxies in terms of their frequency, distribution within the cluster, star formation properties, and relationship to dark matter (DM) or surface mass density, and intra-cluster medium (ICM) density. We revisit the morphology density relation, which postulates a higher fraction of early type galaxies in dense environments, by considering separately galaxies with a low bulge-to-disk (B/D) ratio and a low gas content as these two parameters may not be correlated in clusters. We report here on our preliminary analysis.
Keywords
Cite
@article{arxiv.0802.3908,
title = {Morphological Transformations of Galaxies in the A901/02 Supercluster from STAGES},
author = {A. L. Heiderman and S. Jogee and D. J. Bacon and M. L. Balogh and M. Barden and F. D. Barazza and E. F. Bell and A. Böhm and J. A. R. Caldwell and M. E. Gray and B. Häußler and C. Heymans and K. Jahnke and E. van Kampen and S. Koposov and K. Lane and D. H. McIntosh and K. Meisenheimer and C. Y. Peng and H. -W. Rix and S. F. Sanchez and R. Somerville and A. N. Taylor and L. Wisotzki and C. Wolf and X. Zheng},
journal= {arXiv preprint arXiv:0802.3908},
year = {2016}
}
Comments
To appear in the ASP conference proceedings of the "Frank N. Bash Symposium 2007: New Horizons in Astronomy", Eds. A. Frebel, J. Maund, J. Shen, M. Siegel. 4 pages, 4 figures