Morphology of TeV gamma-ray emission from the kpc scale jets in radio galaxies
arXiv:2002.06833 · doi:10.3847/1538-4357/ab774b
Abstract
TeV gamma rays are observed from a few nearby radio galaxies whose jets are viewed at relatively large angles towards the observer. This emission can be produced in the kpc scale jets whose Lorentz factors are decelerated from values of the order of several at the parsec scale distances. We consider in detail the model in which TeV gamma-ray emission is produced by the relativistic electrons in the kpc scale jet which comptonize strongly beamed radiation from the inner (parsec scale) jet. As an example, we study morphology of the TeV gamma-ray emission from the decelerated kpc scale jet in the nearby radio galaxy Cen~A. It is shown that TeV gamma-ray emission can extend throughout the kpc scale distances, being relatively smoothly distributed along the jet for some parameters of the considered model. Investigation of the morphological structure of such specific gamma-ray emission by the future Cherenkov Telescope Array (e.g. CTA) should provide important constraints on the content and dynamics of the kpc scale jet in Cen~A.
arXiv comment20 pages, 14 figures, ApJ, accepted
References in corpus (32)
- Unified Schemes for Radio-Loud Active Galactic Nuclei
- Klein-Nishina Effects in the Spectra of Non-Thermal Sources Immersed in External Radiation Fields
- Radio and X-ray observations of the jet in Centaurus A
- The Distance to NGC 5128 (Centaurus A)
- Fermi Large Area Telescope View of the Core of the Radio Galaxy Centaurus A
- Chandra observations of the X-ray jet in 3C66B
- Simultaneous multiwavelength observations of the second exceptional gamma-ray flare of PKS 2155-304 in July 2006
- Chandra Observations of the X-ray Jet in Centaurus A
- Magnetic Fields in Astrophysical Jets: From Launch to Termination
- The X-ray Emissions from the M87 Jet: Diagnostics and Physical Interpretation
- Unveiling the Active Nucleus of Centaurus A
- TANAMI monitoring of Centaurus A: The complex dynamics in the inner parsec of an extragalactic jet
- High Energy gamma-rays From FR I Jets
- Modelling TeV gamma-ray emission from the kiloparsec-scale jets of Centaurus A and M87
- Internal entrainment and the origin of jet-related broad-band emission in Centaurus A
- Long Term Monitoring of the Dynamics and Particle Acceleration of Knots in the Jet of Centaurus A
- Evidence for a second component in the high-energy core emission from Centaurus A?
- Monitoring of the radio galaxy M87 during a low emission state from 2012 to 2015 with MAGIC
- The infrared jet in Centaurus A: multiwavelength constraints on emission mechanisms and particle acceleration
- The -ray spectrum of the core of Centaurus A as observed with H.E.S.S. and Fermi-LAT
- Fermi-LAT Observation of Non-Blazar AGNs
- Detection of Superluminal Motion in the X-Ray Jet of M87
- Absorption of Nuclear Gamma-rays on the Starlight Radiation in FR I Sources: the Case of Centaurus A
- Non-thermal radiation from collisions of compact objects with intermediate scale jets in active galaxies
- Is the High-Energy Emission from Centaurus A Compton-Scattered Jet Radiation?
- Discovery of a new extragalactic source population of energetic particles
- Inverse Compton scattering of starlight in the kiloparsec-scale jet in Centaurus A: The origin of excess TeV -ray emission
- GeV-TeV gamma-rays produced by electrons in the kpc scale jet as a result of comptonization of the inner jet emission
- Revisiting the TeV detection prospects for radio galaxies
- Two blobs in a jet model for the gamma-ray emission in radio galaxies
- Inverse Compton Scattering of the Central Source Photons as an X-ray Emission Mechanism on Kiloparsec Scales in PKS 1127-145
- Attenuation of TeV -rays by the starlight photon field of the host galaxy