Complex diffuse radio emission in the merging PLANCK ESZ cluster Abell 3411

Abstract

We present VLA radio and Chandra X-ray observations of the merging galaxy cluster Abell 3411. For the cluster, we find an overall temperature of 6.4 keV and an X-ray luminosity of 2.8 x 10^{44} erg s^{-1} between 0.5 and 2.0 keV. The Chandra observation reveals the cluster to be undergoing a merger event. The VLA observations show the presence of large-scale diffuse emission in the central region of the cluster, which we classify as a 0.9 Mpc size radio halo. In addition, a complex region of diffuse, polarized emission is found in the southeastern outskirts of the cluster, along the projected merger axis of the system. We classify this region of diffuse emission as a radio relic. The total extent of this radio relic is 1.9 Mpc. For the combined emission in the cluster region, we find a radio spectral index of -1.0 \pm 0.1 between 74 MHz and 1.4 GHz. The morphology of the radio relic is peculiar, as the relic is broken up into five fragments. This suggests that the shock responsible for the relic has been broken up due to interaction with a large-scale galaxy filament connected to the cluster or other substructures in the ICM. Alternatively, the complex morphology reflects the presence of electrons in fossil radio bubbles that are re-accelerated by a shock.

Accepted for publication in ApJ, 8 pages, 5 figures

References in corpus (24)

• A direct empirical proof of the existence of dark matter
• Clusters of galaxies : observational properties of the diffuse radio emission
• Chandra temperature profiles for a sample of nearby relaxed galaxy clusters
• Particle Acceleration on Megaparsec Scales in a Merging Galaxy Cluster
• On the connection between giant radio halos and cluster mergers
• A low-frequency radio halo associated with a cluster of galaxies
• Radio signature of cosmological structure formation shocks
• GMRT Radio Halo Survey in galaxy clusters at z = 0.2 -- 0.4. II.The eBCS clusters and analysis of the complete sample
• Diffusive Shock Acceleration Simulations of Radio Relics
• GMRT Radio Halo Survey in galaxy clusters at z = 0.2 -- 0.4 I.The REFLEX sub--sample
• Statistics of Giant Radio Halos from Electron Reacceleration Models
• Giant radio relics in galaxy clusters: reacceleration of fossil relativistic electrons?
• Discovery of radio halos and double-relics in distant MACS galaxy clusters: clues to the efficiency of particle acceleration
• Shock acceleration as origin of the radio relic in A521?
• Deep 1.4 GHz VLA Observations of the Radio Halo and Relic in Abell 2256
• The "toothbrush-relic": evidence for a coherent linear 2-Mpc scale shock wave in a massive merging galaxy cluster?
• Double relics in Abell 2345 and Abell 1240: spectral index and polarization analysis
• Constraints on Cosmic Rays, Magnetic Fields, and Dark Matter from Gamma-Ray Observations of the Coma Cluster of Galaxies with VERITAS and Fermi
• Chandra observation of two shock fronts in the merging galaxy cluster Abell 2146
• Probing the origin of giant radio halos through radio and gamma-ray data : the case of the Coma cluster
• Diffusive Shock Acceleration at Cosmological Shock Waves
• On the Physics of Radio Halos in Galaxy Clusters: Scaling Relations and Luminosity Functions
• Discovery of Megaparsec-Scale, Low Surface Brightness Nonthermal Emission in Merging Galaxy Clusters using the Green Bank Telescope
• VLSS Redux: Software Improvements applied to the Very Large Array Low-frequency Sky Survey

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• Diffuse Radio Emission from Galaxy Clusters
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• Measuring the dynamical state of Planck SZ-selected clusters: X-ray peak - BCG offset
• Deep LOFAR observations of the merging galaxy cluster CIZA J2242.8+5301
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• Merging Cluster Collaboration: A Panchromatic Atlas of Radio Relic Mergers
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• Magnetic Field Evolution in Giant Radio Relics using the example of CIZA J2242.8+5301
• MC^2: Mapping the Dark Matter Distribution of the "Toothbrush" Cluster RX J0603.3+4214 with Hubble Space Telescope and Subaru Weak-lensing
• Radio observations of the double-relic galaxy cluster Abell 1240
• A 3.5 Mpc-long radio relic in the galaxy cluster ClG 0217+70
• ATCA observations of the MACS-Planck Radio Halo Cluster Project - I. New detection of a radio halo in PLCK G285.0-23.7
• Diffuse galaxy cluster emission at 168 MHz within the Murchison Widefield Array Epoch of Reionization 0-hour field
• A Massive Cluster at z = 0.288 Caught in the Process of Formation: The Case of Abell 959
• The nature of the giant diffuse non-thermal source in the A3411-A3412 complex
• The correlation between radio power and Mach number for radio relics in galaxy clusters
• Inverse-Compton Emission from Clusters of Galaxies: Predictions for ASTRO-H
• Contribution of Radio Halos to the Foreground for SKA EoR Experiments
• X-ray study of the merging galaxy cluster Abell 3411-3412 with XMM-Newton and Suzaku
• Chandra Observations of the Spectacular A3411-12 Merger Event
• Gamma-ray emission from galaxy cluster outskirts versus radio relics
• Radio halos in a mass-selected sample of 75 galaxy clusters. I. Sample selection and data analysis
• The application of the adiabatic compression scenario to the radio relic in the galaxy cluster Abell 3411-3412