Nonthermal Radiation Processes in X-ray Jets

Abstract

Analytic approximations for synchrotron, synchrotron self-Compton (SSC), and external Compton (EC) processes are used to constrain model parameters for knot and hot-spot emission in extended jets of radio galaxies. Equipartition formulas are derived that relate the Doppler factor $\delta$ and comoving magnetic field $B$ assuming a nonthermal synchrotron origin of the radio emission, and synchrotron, SSC and EC origins of the X-ray emission. Expressions are also derived for $\delta$ and $B$ that minimize the total jet powers of the emitting region in synchrotron, SSC and EC models for the X-ray emission. The results are applied to knot WK7.8 of PKS 0637-752. Predictions to test two-component synchrotron and EC models are made for {\it Chandra} and {\it GLAST}.

Clarified this and earier treatment of Tavecchio et al. (2000); removed self-absorption section; 6 pages, 2 figures, ApJ Letters, in press, Aug. 10, 2004

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Cited by in corpus (31)

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• The 300 kpc Long X-ray Jet in PKS 1127-145, z=1.18 Quasar: Constraining X-ray Emission Models
• Ruling out IC/CMB X-rays in PKS 0637-752 and the Implications for TeV Emission from Large-Scale Quasar Jets
• Quasar X-ray jets: Gamma-ray diagnostics of the synchrotron and inverse Compton hypotheses, the case of 3C 273
• Fermi Rules Out the IC/CMB Model for the Large Scale Jet X-ray Emission of 3C 273
• Fermi non-detections of four X-ray jet sources and implications for the IC/CMB mechanism
• The Highly Relativistic Kiloparsec-Scale Jet of the Gamma-Ray Quasar 0827+243
• The Megaparsec-Scale X-ray Jet of the BL Lac Object OJ287
• Synchrotron vs Compton Interpretations for Extended X-ray Jets
• Observations of Magnetic Fields and Relativistic Beaming in Four Quasar Jets
• HST observations of the quasar PKS 0637-752: equipartition electron-proton jet from the most complete spectral coverage to date
• Radio-Gamma-ray connection and spectral evolution in 4C +49.22 (S4 1150+49): the Fermi, Swift and Planck view
• New ALMA and Fermi/LAT Observations of the large-scale jet of PKS 0637-752 Strengthen the Case Against the IC/CMB Model
• Deep Multiwaveband Observations of the Jets of 0208-512 and 1202-262
• Bulk Comptonization of the Cosmic Microwave Background by Extragalactic Jets as a Probe of their Matter Content
• The minimum jet power and equipartition
• Spitzer IRAC Imaging of the Relativistic Jet from Superluminal Quasar PKS 0637-752
• The Origin of the X-ray Emission in Two Well-Aligned Extragalactic Jets: The Case for IC/CMB
• Examining High Energy Radiation Mechanisms of Knots and Hotspots in Active Galactic Nucleus Jets
• Simultaneous Swift and REM monitoring of the blazar PKS0537-441 in 2005
• Offsets between X-ray and Radio Components in X-ray Jets: The AtlasX
• A Multi-Wavelength Study of Multiple Spectral Component Jets in AGN: Testing the IC/CMB Model for the Large-Scale-Jet X-ray Emission
• Possible Proton Synchrotron Origin of X-Ray & Gamma Ray Emission in Large Scale Jet of 3C 273
• Constraints on the Low-Energy Cutoff in the Electron Distribution of the PKS 0637-752 Jet
• Jet Radiation Properties of 4C +49.22: from the Core to Large-Scale Knots
• High-Energy Cosmology: gamma rays and neutrinos from beyond the galaxy
• Fermi/LAT observations of Lobe-dominant Radio Galaxy 3C 207 and Possible Radiation Region of the Gamma-Rays
• Investigating the origin of X-ray jets: A case study of four hybrid morphology MOJAVE blazars