A Two Zone Synchrotron Model for the Knots in the M87 Jet

Abstract

The flux and the spectral index in X-ray energy band from the knots of M87 jet as observed by {\it{Chandra}} indicate a possible synchrotron origin but cannot be explained by simple one zone models with continuous injection of non-thermal electrons. In this letter we propose a two-zone model to explain the observed spectra of the knots of M87 jet. We consider the synchrotron emission from a region with tangled magnetic field where relativistic non-thermal electrons are continuously injected in from an associated acceleration region. The acceleration region is assumed to be compact zone possibly around a shock front. A power-law distribution of electron is injected into the acceleration region and are accelerated to a maximum energy determined by the acceleration time scale and the loss processes. With the present model we are able to explain the overall broadband features of the knots of M87 jet. Also the present model predicts a change in spectral index at ultraviolet energies and future observations at these energies can be used to constrain the parameters involved in the model.

5 pages, 1 figure, typos corrected

References in corpus (26)

• Fast variability of TeV gamma-rays from the radio galaxy M 87
• X-ray Emission from Extragalactic Jets
• A High Resolution X-ray Image of the Jet in M 87
• Production of TeV gamma-radiation in the vicinity of the supermassive black hole in the giant radiogalaxy M87
• Is the Giant Radio Galaxy M87 a TeV Gamma-Ray Emitter?
• Dynamics and High Energy Emission of the Flaring HST-1 Knot in the M 87 Jet
• Chandra observations of the X-ray jet in 3C66B
• The Optical-Near-IR Spectrum of the M87 Jet From HST Observations
• A survey of extended radio jets in AGN with Chandra and HST: First Results
• The X-ray Emissions from the M87 Jet: Diagnostics and Physical Interpretation
• A synchrotron self-Compton scenario for the very high energy gamma-ray emission of the radiogalaxy M87
• Temporal and Spectral Variabilities of High Energy Emission from Blazars Using Synchrotron Self-Compton Models
• GeV emission from the nearby radio galaxy Centaurus A
• Is the core of M87 the source of its TeV emission? Implications for unified schemes
• Quasar X-ray jets: Gamma-ray diagnostics of the synchrotron and inverse Compton hypotheses, the case of 3C 273
• The infrared jet in Centaurus A: multiwavelength constraints on emission mechanisms and particle acceleration
• On the Magnetic Field in the Kiloparsec-Scale Jet of Radio Galaxy M 87
• A Chandra observation of the X-ray environment and jet of 3C296
• X-ray synchrotron emission from the oblique shock in the jet of the powerful radio galaxy 3C 346
• Ultraviolet HST Observations of the Jet in M87
• A Modified Synchrotron Model for Knots in the M87 Jet
• Transitive X-ray spectrum and PeV gamma-ray cutoff in the M87 jet: Electron "Pevatron"
• Diffusive synchrotron radiation from extragalactic jets
• A Continuous Injection Plasma Model for the X-Ray/Radio Knots in Kpc-Scale Jets of AGN
• Interpretation of the Radio/X-ray Knots of AGN Jets within the Internal Shock Model Framework
• A Role of the Boundary Shear Layer in Modeling of Large Scale Jets

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• Boundary Shear Acceleration in the Jet of MKN501
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• Correlation between optical and $\gamma$-ray flux variations in BL Lacs
• Multi-wavelength study of Mrk 421 TeV flare observed with \emph{TACTIC} telescope in February 2010
• What determines the properties of the X-ray jets in FR-I radio galaxies?
• Study of short term enhanced TeV $\gamma$- ray emission from Mrk 421 observed with TACTIC on December 28, 2014
• An asymmetrical synchrotron model for knots in the 3C 273 jet
• Do radiative losses determine the characteristic emission of the blazar Mkn 421?
• Insights into the Long-Term Flaring Events of Blazar PKS 0805-07: A Multi-Wavelength Analysis over the 2009-2023 Period
• Advection of Accelerated Electrons in Radio/X-ray Knots of AGN Jets
• An hourglass model for the flare of HST-1 in M87
• Probing IC/CMB Interpretation for the X-ray knots of AGN through VHE observations
• Understanding the Broadband Emission Process of 3C 279 through Longterm Spectral Analysis