Using NASA’s Chandra X-ray Observatory, an international team of astronomers has conducted deep imaging observations of a high-redshift radio galaxy known as 4C 63.20. The observational campaign has revealed an extended X-ray emission from this source. The finding is reported in a paper published July 20 on the arXiv pre-print paper.
Source:
https://phys.org/news/2020-07-x-ray-emission-radio-galaxy-4c.html