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The X‐ray and radio jets of quasars on kiloparsec scales
Author(s) -
Jorstad S. G.,
Marscher A. P.
Publication year - 2006
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.200510512
Subject(s) - physics , quasar , astrophysics , cosmic microwave background , compton scattering , jet (fluid) , doppler effect , scattering , relativistic beaming , astronomy , active galactic nucleus , optics , galaxy , anisotropy , thermodynamics
We have observed five quasars (0827+243, 0923+392, 1222+216, 1317+520, and 2209+080) with Chandra at 0.2–8 keV and with the VLA at 5 and 15 GHz. The X‐ray emission is detected from all the radio jets except for 0923+392, whose double radio jet only extends out to the edge of the X‐ray PSF. We model the spectral energy distribution of the jet features assuming that the X‐ray emission originates via inverse Compton scattering off the cosmic microwave background by relativistic electrons. For two sources (0827+243 and 1222+216) proper motion on parsec scales is consistent with the Doppler factors derived from the model, which implies that no deceleration occurs between parsec and kiloparsec jets. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)