Characterizing Barred Galaxies in the Abell 901/902 Supercluster
Abstract
In dense clusters, higher densities at early epochs as well as physical processes, such as ram pressure stripping and tidal interactions become important, and can have direct consequences for the evolution of bars and their host disks. To study bars and disks as a function of environment, we are using the STAGES ACS HST survey of the Abell 901/902 supercluster (z~0.165), along with earlier field studies based the SDSS and the Ohio State University Bright Spiral Galaxy Survey (OSUBSGS). We explore the limitations of traditional methods for characterizing the bar fraction, and in particular highlight uncertainties in disk galaxy selection in cluster environments. We present an alternative approach for exploring the proportion of bars, and investigate the properties of bars as a function of host galaxy color, Sersic index, stellar mass, star formation rate (SFR), specific SFR, and morphology.
Cite
@article{arxiv.0802.3910,
title = {Characterizing Barred Galaxies in the Abell 901/902 Supercluster},
author = {I. Marinova and S. Jogee and D. Bacon and M. Balogh and M. Barden and F. D. Barazza and E. F. Bell and A. Bohm and J. A. R. Caldwell and M. E. Gray and B. Haussler 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 A. Taylor and L. Wisotzki and C. Wolf and X. Zheng},
journal= {arXiv preprint arXiv:0802.3910},
year = {2008}
}
Comments
to appear in the ASP conference proceedings of the "Frank N. Bash Symposium 2007: New Horizons in Astronomy", editors: A. Frebel, J. Maund, J. Shen, M. Siegel