Extended and compact X-ray emission from the powerful radio galaxy 3C 220.1

M. J. Hardcastle*, C. R. Lawrence, D. M. Worrall

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

16 Citations (Scopus)


We report on ROSAT HRI observations of the z = 0.61 radio galaxy 3C 220.1. The X-ray emission from this object consists of an extended component, which we attribute to luminous cluster emission, and a compact central source. The compact component is too bright to be modeled as a cooling flow under some plausible assumptions for the hot gas temperature and distribution; we suggest instead that it is directly related to the core of the radio source. The X-ray flux of the compact component is consistent with the prediction of Worrall et al. that all powerful radio galaxies should have a central jet-related X-ray emission component that is proportional in strength to the radio-core flux density. Other observations of distant 3CR radio sources are consistent with this model.

Original languageEnglish
Pages (from-to)743-748
Number of pages6
JournalAstrophysical Journal
Issue number2 PART I
Publication statusPublished - 1 Jan 1998


  • Galaxies: individual (3C 220.1)
  • Galaxies: jets
  • Radio continuum: galaxies
  • X-rays: galaxies


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