Large-scale jets in active galactic nuclei: multiwavelength mapping

By A. Celotti, G. Ghisellini, M. Chiaberge. 2000

231 citations recorded by the source corpus.

ABSTRA C T X-ray emission from large-scale extragalactic jets is likely to be as a result of inverse Compton scattering of relativistic particles off seed photons of both the cosmic microwave background field and the blazar nucleus. The first process dominates the observed highenergy emission of large-scale jets if the plasma is moving at highly relativistic speeds and if the jet is aligned with the line of sight, i.e. in powerful flat radio spectrum quasars. The second process is relevant when the plasma is moving at mildly bulk relativistic speeds, and can dominate the high-energy emission in misaligned sources, i.e. in radio galaxies. We show that this scenario satisfactorily accounts for the spectral energy distribution detected by Chandra from the jet and core of PKS 0637‐752.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c2a5c78412962a2966ca63da96370fbc29e35596

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Citations in the corpus

X-Ray Emission Properties of Large-Scale Jets, Hot Spots, and Lobes in Active Galactic Nuclei (2004, background): “As an alternative idea, we also consider a case when the difference between the “expected” and “observed” X-ray fluxes is due to the relativistic beaming effect, and the minimum-power condition is fulfilled, as suggested by Tavecchio et al. (2000) and Celotti et al. (2001).”
X-Ray Emission Processes in Radio Jets (2001, methodology): “…ratio of X-ray to synchrotron emission than other models, there is no completely convincing evidence that kpc-scale jets actually have bulk velocities close to c. Beaming models have been presented for PKS0637 (Celotti et al, 2001; Tavecchio et al. 2000) and for 3C 273 (Sambruna et al. 2001).”
A Survey of Extended Radio Jets with Chandra and the Hubble Space Telescope (2004, background): “…as synchrotron emission or synchrotron–selfCompton (Schwartz et al. 2000) but instead was attributed to inverse Compton (IC) scattering of cosmic microwave background (CMB) photons by relativistic electrons in the 698 jet, with jet Lorentz factors 10 (Tavecchio et al. 2000; Celotti et al. 2001).”
Radio galaxies and feedback from AGN jets (2020, background): “are still the subject of debate; the original proposal that they represent inverse-Compton emission from the highly boosted CMB from jets with Γ ∼ 10 (Tavecchio et al., 2000; Celotti et al., 2001), while attractive, has a number of problems (Stawarz et al.”