VLA radio observations of the X-ray cavity cluster of galaxies RBS797

Details VLA radio observations of the X-ray cavity cluster of galaxies RBS797 VLA radio observations of the X-ray cavity cluster of galaxies RBS797

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20717713g&link_type=abstract

American Astronomical Society Meeting 207, #177.13; Bulletin of the American Astronomical Society, Vol. 37, p.1451

Astronomy and Astrophysics

Astronomy

Scientific paper

We report on the peculiar activity of the radio source located at the center of the cooling flow cluster RBS797 (z=0.35), the first distant cluster in which two pronounced X-ray cavities have been discovered. The new multifrequency (1.4, 4.8 and 8.4 GHz) observations obtained with the Very Large Array (VLA) reveal clearly the presence of radio emission on three different scales showing orientation in different directions. Particularly remarkable is that the inner radio jets on kpc scale are oriented in a direction perpendicular to that of the extended structure detected at lower resolution, which is elongated exactly towards the holes detected in X-rays. We therefore find evidence of a strong interaction between the central radio source and the intra-cluster medium in RBS797. We suggest a scenario in which the 1.4 GHz emission filling the X-ray cavities consists of buoyant bubbles of radio emitting plasma created by twin jets in the past whose expansion has displaced the thermal gas that was formerly in the X-ray holes, whereas the two jets visible at 4.8 GHz are related to the present nuclear activity which has restarted at a position angle different from the original outburst that created the outer radio lobes. This work was supported by the Austrian Science Foundation FWF under grant P15868 and by the Tiroler Wissenschaftsfonds.

Affiliated with

Also associated with

No associations

Rating

VLA radio observations of the X-ray cavity cluster of galaxies RBS797 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 VLA radio observations of the X-ray cavity cluster of galaxies RBS797, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VLA radio observations of the X-ray cavity cluster of galaxies RBS797 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1288257