Monitoring the Bi-Directional Relativistic Jets of the Radio Galaxy 3C 338

Details Monitoring the Bi-Directional Relativistic Jets of the Radio Galaxy 3C 338 Monitoring the Bi-Directional Relativistic Jets of the Radio Galaxy 3C 338

2006-12-08

arxiv.org/abs/astro-ph/0612233v1

Astrophys.J.659:225-234,2007

Astronomy and Astrophysics

Astrophysics

13 pages, 11 figures (3 in colour). Accepted for publication in ApJ

Scientific paper

10.1086/512479

We present the analysis of VLA and VLBA observations of the radio source 3C 338, associated with the cD galaxy NGC 6166, the central dominant galaxy of the cluster Abell 2199. The VLBA observations were done at 8.4 and 15.4 GHz, while the VLA observations were performed at 0.074, 0.330, and 8.4 GHz. The milliarcsecond resolution VLBA data, spanning 7 years, reveal the parsec-scale jets, whose kinematics and orientation cannot be unambiguously derived. Based on the observed morphology, jet/counter-jet length ratio, flux density ratio, and proper motions of the jet components, we consider two possible explanations: either the jets are strongly relativistic and lie within 10 - 20 degrees of the plane of the sky, or they are only mildly relativistic, and are pointing at an angle between 30 - 50 degrees from the plane of the sky. The arcsecond resolution VLA data enable us to investigate the large scale structure of the radio source. The morphology of the low frequency radio lobes clearly indicates that they are associated with the cavities present in the X-ray emission. Low frequency observations also reveal an extension to the south corresponding to an X-ray hole. The age of these bubbles, computed from the sound speed, the buoyancy time and the radiative age are all in fair agreement with each other. Estimates of the power necessary to inflate these cavities suggest that the accretion power onto the central engine has not been constant over time.

Affiliated with

Also associated with

No associations

Rating

Monitoring the Bi-Directional Relativistic Jets of the Radio Galaxy 3C 338 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Monitoring the Bi-Directional Relativistic Jets of the Radio Galaxy 3C 338, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Monitoring the Bi-Directional Relativistic Jets of the Radio Galaxy 3C 338 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-440188