Inverse-Compton emission from the radio lobes of powerful high-redshift radio galaxies
Abstract
Analysis of the radio synchrotron and X-ray inverse-Compton emission from powerful radio-loud active radio galaxies allows us to determine their particle acceleration processes and electron energy spectra. We have made new Chandra observations along with archival radio data of high-redshift radio galaxies, where we detect inverse-Compton emission from the radio lobes. Here, we present (i) constraints on the densities of the electrons emitting radio synchrotron and inverse-Compton emission in the radio lobes and describe the properties of the particle energy spectrum, and (ii) our understanding of the interplay between the ambient medium and the radio galaxy. Finally, we discuss the importance of multi-wavelength, in particular low-frequency radio imaging, and the role of forthcoming Square Kilometre Array and Athena instruments.
- Publication:
-
The X-ray Universe 2017
- Pub Date:
- October 2017
- Bibcode:
- 2017xru..conf..125L