A Radio through X-ray Study of the Hot Spots, Active Nucleus, and Environment of the Nearby FR II Radio Galaxy 3C 33

Abstract

We present results from {\em Chandra}/ACIS-S, {\em Spitzer}, {\em XMM-Newton}, {\em HST}, and VLA observations of the radio hot spots, extended environment, and nucleus of the nearby ($z$=0.0597) FR II radio galaxy 3C 33. This is a relatively low-power FR II radio galaxy, and so we expect, {\it a priori}, to detect a significant X-ray synchrotron component to the emission from the hot spots. We detect X-ray emission coincident with the two knots of polarized optical emission from the southern hot spot (SHS), as well as along the northwest arm of this hot spot. We also detect X-ray emission from two compact regions of the northern hot spot (NHS), as well as diffuse emission behind the radio peak. The X-ray flux density of the region at the tip of the southern hot spot, the most compact radio feature of the southern lobe, is consistent with the synchrotron self-Compton (SSC) process. The X-ray flux densities of the other three regions of the SHS and the two compact regions of the NHS are an order of magnitude or more above the predictions from either the SSC and inverse-Compton scattering of the CMB (IC/CMB) mechanisms, thus strongly disfavoring these scenarios unless they are far from equipartition ($B$ $\sim$4-14 times smaller than the equipartition values). The X-ray flux from the diffuse region behind the NHS is consistent with the IC/CMB prediction assuming a small departure from equipartition. We conclude that the X-ray emission is synchrotron emission from multiple populations of ultrarelativistic electrons unless these regions are far from equipartition. There must therefore be unresolved substructure within each knot, similar to that which is found in Chandra observations of nearby FR I jets such as Centaurus A and 3C 66B.

arXiv commentAccepted for publication in the Astrophysical Journal - 43 pages, 14 figures, 6 tables

References in corpus (25)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• A Systematic Study of Radio-Induced X-ray Cavities in Clusters, Groups, and Galaxies
• An X-ray study of magnetic field strengths and particle content in FRII radio sources
• X-ray Emission Properties of Large Scale Jets, Hotspots and Lobes in Active Galactic Nuclei
• An X-ray Spectral Survey of Radio-Loud AGN With ASCA
• The X-ray nuclei of intermediate-redshift radio sources
• Chandra and XMM-Newton Observations of a Sample of Low-Redshift FRI and FRII Radio-Galaxy Nuclei
• The origins of X-ray emission from the hotspots of FRII radio sources
• X-ray Emission from the Hot ISM and SW Radio Lobe of the Nearby Radio Galaxy Centaurus A
• Magnetic field strengths in the hotspots and lobes of three powerful FRII radio sources
• Chandra Observations of Cygnus A: Magnetic Field Strengths in the Hot Spots of a Radio Galaxy
• Chandra observations of the X-ray jet in 3C66B
• Chandra Observations of the X-ray Jet in Centaurus A
• A Chandra Study of the Multi-Component X-ray Emission from the X-shaped Radio Galaxy 3C 403
• Relativistic and slowing down: the flow in the hotspots of powerful radio galaxies and quasars
• X-ray emission from the nuclei, lobes and hot-gas environments of two FR-II radio galaxies
• The environments of FRII radio sources
• Evidence for radio-source heating of groups
• Magnetic field strengths in the hot spots of 3C33 and 3C111
• The Bologna Complete Sample of Nearby Radio Sources
• High redshift FRII radio galaxies: X-ray properties of the cores
• In-Situ Particle Acceleration in Extragalactic Radio Hot Spots: Observations Meet Expectations
• XMM-Newton observations of three high redshift radio galaxies
• The Hot Gas Environment of the Radio Galaxy 3C 388: Quenching the Accumulation of Cool Gas in a Cluster Core by a Nuclear Outburst

Cited by in corpus (33)

• The subarcsecond mid-infrared view of local active galactic nuclei: II. The mid-infrared--X-ray correlation
• High-energy particle acceleration at the radio-lobe shock of Centaurus A
• Numerical modelling of the lobes of radio galaxies in cluster environments II: Magnetic field configuration and observability
• The X-ray Jets of Active Galaxies
• The WISE properties of complete samples of radio-loud AGN
• The link between accretion mode and environment in radio-loud active galaxies
• A Chandra study of particle acceleration in the multiple hotspots of nearby radio galaxies
• The environments of radio-loud AGN from the LOFAR Two-Metre Sky Survey (LoTSS)
• Large Scale Extragalactic Jets in the Chandra era I: data reduction and analysis
• The interaction between radio lobes and hot gas in the nearby radio galaxies 3C285 and 3C442A
• Extended X-ray emission in radio galaxies: the peculiar case of 3C 305
• A New Sample of Buried Active Galactic Nuclei Selected from the Second XMM-Newton Serendipitous Source Catalogue
• X-ray Radiation Mechanisms and Beaming Effect of Hot Spots and Knots in Active Galactic Nuclear Jets
• Extended soft X-ray emission in 3CR radio galaxies at z < 0.3: High Excitation and Broad Line Galaxies
• Chandra Observations of the Radio Galaxy 3C 445 and the Hotspot X-ray Emission Mechanism
• 3C 33: another case of photoionized soft X-ray emission in radio galaxies
• Gas Sloshing and Radio Galaxy Dynamics in the Core of the 3C449 Group
• Examining High Energy Radiation Mechanisms of Knots and Hotspots in Active Galactic Nucleus Jets
• The dynamics and environmental impact of 3C452
• A panchromatic review of thermal and nonthermal active galactic nuclei
• The Hard X-Ray View of Reflection, Absorption, and the Disk-Jet Connection in the Radio-Loud AGN 3C 33
• Offsets between X-ray and Radio Components in X-ray Jets: The AtlasX
• XMM-Newton Observations of the Nuclei of the Radio Galaxies 3C 305, DA 240, and 4C 73.08
• Mid-infrared excess from the west hot spot of the radio galaxy Pictor A unveiled by WISE
• A low frequency sub-arcsecond view of powerful radio galaxies in rich-cluster environments: 3C 34 and 3C 320
• Chandra Observation of 3C288 - Reheating the Cool Core of a 3 keV Cluster from a Nuclear Outburst at z = 0.246
• Herschel SPIRE discovery of far-infrared excess synchrotron emission from the west hot spot of the radio galaxy Pictor A
• The Suzaku View of the Disk-Jet Connection in the Low Excitation Radio Galaxy NGC 6251
• Hidden treasures in the unknown 3CR extragalactic radio sky: a multi-wavelength approach
• $\text{Herschel}$ discovery of far-infrared emission from the hot spot D in the radio galaxy Cygnus A
• Spatial variations of magnetic field along active galactic nuclei jets on sub-pc to Mpc scales
• Dust heating in the cores of 3CRR radio galaxies
• Far-infrared probing with PRIMA into particle acceleration associated with relativistic jets from active galactic nuclei