Astrophys. J., Suppl. Ser., 235, 32-32 (2018/April-0)
The 3CR Chandra snapshot survey: extragalactic radio sources with redshifts between 1 and 1.5.
STUARDI C., MISSAGLIA V., MASSARO F., RICCI F., LIUZZO E., PAGGI A., KRAFT R.P., TREMBLAY G.R., BAUM S.A., O'DEA C.P., WILKES B.J., KURASZKIEWICZ J., FORMAN W.R. and HARRIS D.E.
Abstract (from CDS):
The aim of this paper is to present an analysis of newly acquired X-ray observations of 16 extragalactic radio sources listed in the Third Cambridge Revised (3CR) catalog and not previously observed by Chandra. Observations were performed during Chandra Cycle 17, extending X-ray coverage for the 3CR extragalactic catalog up to z = 1.5. Among the 16 targets, two lie at z < 0.5 (3CR 27 at z = 0.184 and 3CR 69 at z = 0.458); all of the remaining 14 have redshifts between 1.0 and 1.5. In the current sample, there are three compact steep spectrum (CSS) sources, three quasars, and an FR I radio galaxy, while the other nine are FR II radio galaxies. All radio sources have an X-ray counterpart. We measured nuclear X-ray fluxes as well as X-ray emission associated with radio jet knots, hotspots, or lobes in three energy bands: soft (0.5-1 keV), medium (1-2 keV), and hard (2-7 keV). We also performed standard X-ray spectral analysis for the four brightest nuclei. We discovered X-ray emission associated with the radio lobe of 3CR 124, a hotspot of the quasar 3CR 220.2, another hotspot of the radio galaxy 3CR 238, and the jet knot of 3CR 297. We also detected extended X-ray emission around the nuclear region of 3CR 124 and 3CR 297 on scales of several tens of kiloparsecs. Finally, we present an update on the X-ray observations performed with Chandra and XMM-Newton on the entire 3CR extragalactic catalog.
© 2018. The American Astronomical Society. All rights reserved.
galaxies: active - radio continuum: galaxies - X-rays: general
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