Feedback on radio galaxies: the cases of 3CR 318.1 and 3CR 196.1
Abstract
Interactions between radio galaxies and their large-scale environments are key factors to investigate the feedback processes responsible for triggering and fuelling AGN activity. To improve our understanding of such interactions, we carried out a multi-frequency analysis based on the comparison between soft X-ray observations collected with Chandra and optical datasets obtained thanks to VLT/MUSE for two radio galaxies harbored in cool core clusters, namely: 3CR 318.1 and 3CR 196.1. These sources are perfect examples of how radio galaxy activity can affect the intracluster medium (ICM), showing different signatures of AGN feedback, cold filaments, and X-ray cavities. 3CR 318.1 presents ionized gas filaments associated with X-ray extended emission, while we observe ionized gas spatially associated with an X-ray cavity in 3CR 196.1. The origin of these ionized gas features remains disputed. Furthermore, ionized gas associated with X-ray cavities has typically been seen surrounding X-ray cavities in other radio galaxies harbored in galaxy clusters, and not directly associated with the cavity, as is the case for 3CR 196.1. Finally, I will also show preliminary results on the optical-to-X-ray comparison for a selected sample of 3CR sources.
- Publication:
-
44th COSPAR Scientific Assembly. Held 16-24 July
- Pub Date:
- July 2022
- Bibcode:
- 2022cosp...44.2328J