The 3C Extragalactic Radio Sky: Legacy of the Third Cambridge Catalogue

A new class of radio structures: hybrid ICM/radio tails

19 Sept 2019, 16:20

20m

Aula Darwin (Torino - Italy)

Extragalactic jets at all scales: from the central supermassive black hole to their interaction with the large scale environments

Speaker

Prof. Lawrence Rudnick (University of Minnesota)

Description

We introduce a new class of "hybrid" radio structures associated with tailed
sources in clusters of galaxies. These hybrid structures do not appear consistent
with models or simulations of material that originated in the outflowing jets.
At the same time, they are not random features of the ICM, e.g., from old radio
galaxies, because they are structurally connected to tailed sources. Their
spectra appear consistent, to first order, with the steeper regions in their
associated tail. We will briefly explore the challenges to be solved in
explaining these sources, identify other cluster radio structures that may
be related, and future work. This work is supported, in part, by U.S. National Science Foundation grant AST 17-14205 to the University of Minnesota.