The origin of wide-angle tailed radio galaxies

Abstract

To investigate the origins of wide-angle tailed radio sources (WATs), we have compiled a sample of these systems in Abell clusters for which X-ray data exist. Contrary to conventional wisdom, the WATs are found to be significantly displaced from the X-ray centroids of their host clusters. The bends in the WATs' radio jets are found to be oriented preferentially such that they point directly away from or toward the cluster centre, with more of the former than the latter. If this morphology is attributed to ram pressure, then the WATs are on primarily radial orbits, with more approaching the X-ray centroid than receding. There is also some evidence that the in-coming WATs are on average further from the X-ray centroid than the out-going ones. All of these observations strongly support a scenario in which WATs are created in cluster mergers.

10 pages, including 5 figures, mn.sty. Accepted for publication in MNRAS

References in corpus (4)

• Anatomy of a Merger: A Numerical Model of A754
• Cluster Winds Blow along Supercluster Axes
• The Cluster Dynamics, X-ray Emission, and Radio Galaxies in Abell 578 and Abell 1569
• X-ray emission from the galaxies in Abell 2634

Cited by in corpus (41)

• Double Lobed Radio Quasars from the Sloan Digital Sky Survey
• Collimated synchrotron threads linking the radio lobes of ESO137-006
• Bandpass Dependence of X-ray Temperatures in Galaxy Clusters
• A wide angle tail radio galaxy in the COSMOS field: evidence for cluster formation
• Jet termination in wide-angle tailed radio sources
• Unveiling the cause of hybrid morphology radio sources (HyMoRS)
• The FIRST Classifier: Compact and Extended Radio Galaxy Classification using Deep Convolutional Neural Networks
• The intra-cluster magnetic field in the double relic galaxy cluster Abell 2345
• WATCAT: a tale of wide-angle tailed radio galaxies
• Using Collisions of AGN Outflows with ICM Shocks as Dynamical Probes
• Making Faranoff-Riley I radio sources II. The effects of jet magnetization
• The Merger Environment of the WAT Hosting Cluster Abell 562
• Discovery of Peculiar Radio Morphologies with ASKAP using Unsupervised Machine Learning
• Chandra Observation of the Cluster Environment of a WAT Radio Source in Abell 1446
• VLA resolves unexpected radio structures in the Perseus cluster of galaxies
• The High-Redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Follow-Up Optical Imaging
• Intracluster medium of the merging cluster Abell 3395
• A closer look at the deep radio sky: Multi-component radio sources at 3-GHz VLA-COSMOS
• A shrinking Compact Symmetric Object: J11584+2450?
• Signatures from a merging galaxy cluster and its AGN population: LOFAR observations of Abell 1682
• The High-Redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Radio Source Properties
• Identifying dynamically young galaxy groups via wide-angle tail galaxies: A case study in the COSMOS field at z=0.53
• Faint, Evolving Radio AGN in SDSS Luminous Red Galaxies
• Multiwavelength view of SPT-CL J2106-5844. The radio galaxies and the thermal and relativistic plasmas in a massive galaxy cluster merger at z~1.13
• 3C 40 in Abell 194: can tail radio galaxies exist in a quiescent cluster?
• A Multi-Wavelength Study of Multiple Spectral Component Jets in AGN: Testing the IC/CMB Model for the Large-Scale-Jet X-ray Emission
• The Massive and Distant Clusters of WISE Survey IX: High Radio Activity in a Merging Cluster
• Increased Prevalence of Bent Lobes for Double-Lobed Radio Galaxies in Dense Environments
• Spitzer observations of Abell 1763 - II: Constraining the nature of activity in the cluster-feeding filament with VLA and XMM-Newton data
• Powerful Radio Sources in the Southern Sky. I. Optical Identifications
• Clusters' far-reaching influence on narrow-angle tail radio galaxies
• The peculiar WAT NGC 2329 with Seyfert/FR I-like radio lobes
• The Hercules cluster in X-rays with $XMM$-$Newton$ and $Chandra$
• HI absorption associated with Norma's brightest cluster galaxy
• Classical and relativistic conservation of momentum flux in radio-galaxies
• Multiwavelength study of Cygnus A IV. Proper motion and location of the nucleus
• The Phoenix Deep Survey: Extremely Red Galaxies and Cluster Candidates
• Orbital motion of NGC 6166 (3C 338) and its impact on the jet morphology at kiloparsec scales
• The phase-space of tailed radio galaxies in massive clusters
• Testing the correlation between bending angle and polarization properties of bent radio galaxies
• How does environment affect the morphology of radio AGN?