X-Ray Emission from the Quasar PKS 1127-145: Comptonized Infrared Photons on Parsec Scales
- 12 December 2003
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 600 (1) , L27-L30
- https://doi.org/10.1086/381497
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.Comment: 13 pages, 1 figure, accepted to ApJ LetterKeywords
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