The Spatial Correlation of Bent-Tail Galaxies and Galaxy Clusters

• Main Authors: O'Brien, Andrew N., Norris, Ray P., Tothill, Nick F. H., Filipović, Miroslav D.
• Format: Text
• Language: unknown
• Published: arXiv 2018
• Subjects: Astrophysics of Galaxies astro-ph.GA; FOS Physical sciences; South Pole; South pole
• Online Access: https://dx.doi.org/10.48550/arxiv.1809.10346; https://arxiv.org/abs/1809.10346

We have completed a deep radio continuum survey covering 86 square degrees of the Spitzer-South Pole Telescope deep field to test whether bent-tail galaxies are associated with galaxy clusters. We present a new catalogue of 22 bent-tail galaxies and a further 24 candidate bent-tail galaxies. Surprisingly, of the 8 bent-tail galaxies with photometric redshifts, only two are associated with known clusters. While the absence of bent-tail sources in known clusters may be explained by effects such as sensitivity, the absence of known clusters associated with most bent-tail galaxies casts doubt upon current models of bent-tail galaxies. : Accepted by MNRAS