# A non cool-core 4.6-keV cluster around the bright nearby radio galaxy PKS B1416-493

## TL;DR

This paper reports the discovery of a bright, high-temperature non cool-core galaxy cluster around the radio galaxy PKS B1416-493, highlighting its implications for understanding radio galaxy heating in the local universe.

## Contribution

It presents new X-ray and radio observations revealing a previously unrecognized high-temperature cluster and analyzes the radio galaxy's impact on its environment.

## Key findings

- Discovery of a 4.6 keV non cool-core cluster at z=0.09.
- Identification of a cavity aligned with the radio lobe.
- Estimate of jet power supporting the role of intermediate radio sources in galaxy heating.

## Abstract

We present new X-ray (Chandra) and radio (ATCA) observations of the z=0.09 radio galaxy PKS B1416-493, a member of the southern equivalent of the 3CRR sample. We find the source to be embedded in a previously unrecognized bright kT=4.6 keV non cool-core cluster. The discovery of new clusters of such high temperature and luminosity within z=0.1 is rare. The radio source was chosen for observation based on its intermediate FRI/II morphology. We identify a cavity coincident with the northeast lobe, and excess counts associated with the southwest lobe that we interpret as inverse Compton X-ray emission. The jet power, at 5.3 x 10^44 erg/s, when weighted by radio source density, supports suggestions that radio sources of intermediate morphology and radio power may dominate radio-galaxy heating in the local Universe.