# The Massive and Distant Clusters of WISE Survey V: Extended Radio Sources in Massive Galaxy Clusters at z~1

## TL;DR

This study uses JVLA observations to analyze the radio morphologies of extended sources in 10 massive galaxy clusters at z~1, revealing correlations with cluster-centric radius and host galaxy properties.

## Contribution

It provides new insights into the radio morphologies and host galaxy characteristics of extended radio sources in high-redshift galaxy clusters.

## Key findings

- Six FR II sources identified among the radio sources.
- 75% of radio sources have infrared counterparts indicating massive host galaxies.
- Angular extent of FR sources correlates with cluster-centric radius.

## Abstract

We present the results from a pilot study with the Karl G. Jansky Very Large Array (JVLA) to determine the radio morphologies of extended radio sources and the properties of their host-galaxies in 10 massive galaxy clusters at z~1, an epoch in which clusters are assembling rapidly. These clusters are drawn from a parent sample of WISE-selected galaxy clusters that were cross-correlated with the VLA Faint Images of the Radio Sky at Twenty-Centimeters survey (FIRST) to identify extended radio sources within 1$^{\prime}$ of the cluster centers. Out of the ten targeted sources, six are FR II sources, one is an FR I source, and three sources have undetermined morphologies. Eight radio sources have associated Spitzer data, 75% presenting infrared counterparts. A majority of these counterparts are consistent with being massive galaxies. The angular extent of the FR sources exhibits a strong correlation with the cluster-centric radius, which warrants further investigation with a larger sample.