We present the analysis of nine radio sources belonging to the Third Cambridge Revised catalog (3CR) observed with Chandra during Cycle 20 in the redshift range between 1.5 and 2.5. This study completes the 3CR Chandra Snapshot Survey thus guaranteeing the X-ray coverage of all 3CR sources identified to date. This sample lists two compact steep spectrum sources, four radio galaxies and three quasars. We detected X-ray emission from all nuclei, with the only exception of 3C 326.1 and 3C 454.1 and from radio lobes in 6 out of 9 sources at level of confidence larger than ∼5σ. We measured X-ray fluxes and luminosities for all nuclei and lobes in the soft (0.5 - 1 keV), medium (1 - 2 keV) and hard (2 - 7 keV) X-ray bands. Since the discovered X-ray extended emission is spatially coincident with the radio structure in all cases, its origin could be due to Inverse Compton scattering of the Cosmic Microwave Background (IC/CMB) occurring in radio lobes.
@article{arxiv.2007.02945,
title = {The $\textit{Chandra}$ 3CR extragalactic survey at high redshift},
author = {A. Jimenez-Gallardo and F. Massaro and M. A. Prieto and V. Missaglia and C. Stuardi and A. Paggi and F. Ricci and R. P. Kraft and E. Liuzzo and G. R. Tremblay and S. A. Baum and C. P. O'Dea and B. J. Wilkes and J. Kuraszkiewicz and W. R. Forman and D. E. Harris},
journal= {arXiv preprint arXiv:2007.02945},
year = {2020}
}
Comments
15 pages, 11 figures, 3 tables, ApJS accepted, pre-proof version