English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We recently constructed the G4Jy-3CRE, a catalog of extragalactic radiosources based on the GLEAM 4-Jy (G4Jy) sample, with the aim of increasing thenumber of powerful radio galaxies and quasars with similar selection criteriato those of the revised release of the Third Cambridge catalog (3CR). TheG4Jy-3CRE consists of a total of 264 radio sources mainly visible from theSouthern Hemisphere. Here, we present an initial X-ray analysis of 89 G4Jy-3CREradio sources with archival X- ray observations from the Neil Gehrels SwiftObservatory. We reduced a total of 615 Swift observations, for about 0.89 Msecof integrated exposure time, we found X-ray counterparts for 61 radio sourcesbelonging to the G4Jy-3CRE, 11 of them showing extended X-ray emission. Theremaining 28 sources do not show any X-ray emission associated with their radiocores. Our analysis demonstrates that X-ray snapshot observations, even iflacking uniform exposure times, as those carried out with Swift, allow us to(i) verify and/or re ne the host galaxy identi cation; (ii) discover theextended X-ray emission around radio galaxies of the intracluster medium whenharbored in galaxy clusters, as the case of G4Jy 1518 and G4Jy 1664, and (iii)detect X-ray radiation arising from their radio lobes, as for G4Jy 1863.

Powerful Radio Sources in the Southern Sky. II. A SWIFT X-Ray Perspective