A Recent Cluster Merger Bent the Radio Source in Abell 562
Abstract
We confirm that the physical mechanism responsible for the bending of the radio jets in Abell 562 is a recent cluster merger. It has been proposed that radio jets in wide-angle tailed radio sources (WATs) bend by ram pressure between the jets and the intra-cluster medium (ICM). A new ram pressure model for A562 suggests that a velocity of about 800 km/s is needed for bending its radio jets. We verified that a recent merger happened in this cluster by analyzing over 100 new redshifts for the cluster members. Moreover, we also verified that the radio galaxy has negligible peculiar velocity. Finally, our ram pressure calculations at the points of jet bending derived from the velocity and X-ray data support this model.
- Publication:
-
American Astronomical Society Meeting Abstracts #220
- Pub Date:
- May 2012
- Bibcode:
- 2012AAS...22043505G