Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 401, Issue 3, Pages 1500-1504Publisher
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1365-2966.2009.15769.x
Keywords
galaxies: high-redshift; galaxies: jets; X-rays: galaxies; X-rays: individual (3C 469.1, MRC 2216-206, MRC 0947-249)
Categories
Funding
- Cavendish Laboratory, Cambridge
- Jawaharlal Nehru Memorial Trust
- Cambridge Commonwealth Trust
- STFC [ST/H002456/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H002456/1, ST/H00243X/1] Funding Source: researchfish
Ask authors/readers for more resources
We report XMM-Newton observations of three FR II radio galaxies at redshifts between 0.85 and 1.34, which show extended diffuse X-ray emission within the radio lobes, likely due to inverse-Compton up-scattering of the cosmic microwave background. Under this assumption, through spectrum fitting together with archival Very Large Array radio observations, we derive an independent estimate of the magnetic field in the radio lobes of 3C 469.1 and compare it with the equipartition value. We find concordance between these two estimates as long as the turnover in the energy distribution of the particles occurs at a Lorentz factor in excess of similar to 250. We determine the total energy in relativistic particles in the radio-emitting lobes of all three sources to range between 3 x 10(59) and 8 x 10(59) erg. The nuclei of these X-ray sources are heavily-absorbed powerful active galactic nuclei.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available