Dust heating in the cores of 3CRR radio galaxies

Research output: Contribution to journalArticle (Academic Journal)


We have undertaken a Spitzer campaign to measure the IR structures and spectra of low-redshift 3CRR radio galaxies. The results show that the 3.6 - 160 micron infrared properties vary systematically with integrated source power, and so demonstrate that contemporary core activity is characteristic of the behaviour of sources over their lifetimes. IR synchrotron emission is seen from jets and hotspots in some cases. Thermal emission is found from a jet/gas interaction in NGC 7385. Most of the near-IR integrated colours of the low-redshift 3CRR radio galaxies are similar to those of passive galaxies, so that IR colours are poor indicators of radio activity.
Original languageEnglish
Pages (from-to)294-298
Number of pages5
JournalProceedings of the International Astronomical Union
Publication statusPublished - 28 Apr 2015
EventExtragalactic Jets from Every Angle - Galapagos Islands, Puerto Ayora, Ecuador
Duration: 15 Sep 201419 Sep 2014

Bibliographical note

5 pages, 3 figures


  • astro-ph.HE
  • astro-ph.GA


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