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X-Ray Emission from the Quasar PKS 1127-145: Comptonized IR Photons on Parsec Scales

Michal Blazejowski·Aneta Siemiginowska·Marek Sikora·Rafal Moderski·Jill Bechtold
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Abstract

We model the broad-band spectral energy distribution of the innermost "core-jet" region of the redshift z=1.187 quasar PKS 1127-145. We propose a scenario where the high energy photons are produced via the Compton scattering of thermal IR radiation by the relativistic particles in a parsec-scale jet. The high energy spectrum, together with the observed radio variability and superluminal expansion, suggest that PKS 1127-145 may be a blazar, despite the fact that its optical/UV component is likely dominated by thermal radiation from an accretion disk. The relation of PKS 1127-145 to MeV - blazars is discussed.

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Michal Blazejowski, Aneta Siemiginowska, Marek Sikora, Rafal Moderski, Jill Bechtold. 2003-11-17. X-Ray Emission from the Quasar PKS 1127-145: Comptonized IR Photons on Parsec Scales. https://doi.org/10.1086/381497

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