8th HEAD Meeting, 8-11 September, 2004
Session 9 Jets and Blazars
Oral, Wednesday, September 8, 2004, 11:00am-12:30pm

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[9.04] Using the CMB to probe the matter content of extended quasar jets.

M. Georganopoulos (JCA/UMBC, NASA/GSFC), E. S. Perlman (JCA/UMBC), D. Kazanas, F. W. Stecker (NASA/GSFC)

There are some well known superluminal quasars (e.g. 3C 273, PKS 0637-752, 0827+243) whose jets emit little radiation up to 5-10 arcseconds from the core and then brighten up substantially in radio, optical, and X-ray energies. We argue that the radiating leptons in the second, active part of the jet are transported practically cold through the first, quiescent part, and we use this to estimate the minimum anticipated IR bulk Compton scattering off the cosmic microwave background. Observing this component with Spitzer will actually measure the large scale jet power carried by leptons. This can be used to constrain the hadronic jet power and the injection efficiency of lepton acceleration.

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Bulletin of the American Astronomical Society, 36 #3
© 2004. The American Astronomical Soceity.