English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The cores of massive galaxy clusters, where hot gas is cooling rapidly,appear to undergo cycles of self-regulating energy feedback, in which AGNoutbursts in the central galaxies episodically provide sufficient heating tooffset much of the gas cooling. We use deep integral-field spectroscopy tostudy the optical line emission from the extended nebulae of three nearbybrightest cluster galaxies and investigate how they are related to theprocesses of heating and cooling in the cluster cores. Two of these systems,Abell 3581 and Sersic 159-03, appear to be experiencing phases of feedback thatare dominated by the activity and output of a central AGN. Abell 3581, showsevidence for significant interaction between the radio outflows and the opticalnebula, in addition to accretion flows into the nucleus of the galaxy. X-rayand radio data show that Sersic 159-03 is dominated by the feedback of energyfrom the central AGN, but the kinematics of the optical nebula are consistentwith infall or outflow of material along its bright filaments. The thirdsystem, 2A 0335+096, is dominated by mass accretion and cooling, and so wesuggest that it is in an accumulation phase of the feedback cycle. The outernebula forms a disk-like structure, ~14 kpc in radius, that rotates about thecentral galaxy with a velocity amplitude of ~200 km/s. Overall, our data areconsistent with ongoing AGN-driven feedback cycles occurring in these systems.

Feedback in the cores of clusters Abell 3581, 2A 0335+096, and Sersic 159-03