X-ray Detection of the Inner Jet in the Radio Galaxy M84

Astronomy and Astrophysics – Astrophysics

Scientific paper

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6 pages. Tentatively scheduled to appear in the ApJ vol. 580, 2002 Nov 20 issue

Scientific paper

10.1086/343112

During the course of an investigation of the interaction of the radio galaxy M84 and its ambient cluster gas, we found excess X-ray emission aligned with the northern radio jet. The emission extends from the X-ray core of the host galaxy as a weak bridge and then brightens to a local peak coincident with the first detectable radio knot at approx. 2.5" from the core. The second radio knot at 3.3" is brighter in both radio and X-rays. The X-ray jet terminates 3.9" from the core. Although all the evidence suggests that Doppler favoritism augments the emission of the northern jet, it is unlikely that the excess X-ray emission is produced by inverse Compton emission. We find many similarities between the M84 X-ray jet and recent jet detections from Chandra data of low luminosity radio galaxies. For most of these current detections synchrotron emission is the favored explanation for the observed X-rays.

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