Morphology of TeV gamma-ray emission from the kpc scale jets in radio galaxies. (arXiv:2002.06833v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Bednarek_W/0/1/0/all/0/1">W. Bednarek</a>
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.
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.
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