Skip to Main content Skip to Navigation
Journal articles

Feedback from Active Galactic Nuclei in Galaxy Groups

Abstract : The co-evolution between supermassive black holes and their environment is most directly traced by the hot atmospheres of dark matter halos. The cooling of the hot atmosphere supplies the central regions with fresh gas, igniting active galactic nuclei (AGN) with long duty cycles. Outflows from the central engine tightly couple with the surrounding gaseous medium and provide the dominant heating source preventing runaway cooling by carving cavities and driving shocks across the medium. The AGN feedback loop is a key feature of all modern galaxy evolution models. Here, we review our knowledge of the AGN feedback process in the specific context of galaxy groups. Galaxy groups are uniquely suited to constrain the mechanisms governing the cooling–heating balance. Unlike in more massive halos, the energy that is supplied by the central AGN to the hot intragroup medium can exceed the gravitational binding energy of halo gas particles. We report on the state-of-the-art in observations of the feedback phenomenon and in theoretical models of the heating-cooling balance in galaxy groups. We also describe how our knowledge of the AGN feedback process impacts galaxy evolution models and large-scale baryon distributions. Finally, we discuss how new instrumentation will answer key open questions on the topic.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03236026
Contributor : INSPIRE HEP Connect in order to contact the contributor
Submitted on : Tuesday, August 16, 2022 - 9:11:45 AM
Last modification on : Tuesday, August 16, 2022 - 9:11:46 AM

File

universe-07-00142-v2.pdf
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Dominique Eckert, Massimo Gaspari, Fabio Gastaldello, Amandine M.C. Le Brun, Ewan O'Sullivan. Feedback from Active Galactic Nuclei in Galaxy Groups. Universe, 2021, 7 (5), pp.142. ⟨10.3390/universe7050142⟩. ⟨hal-03236026⟩

Share

Metrics

Record views

75

Files downloads

1