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

We report observations of the radio galaxy 3C317 (at z=0.0345) located at thecenter of the Abell cluster A2052, obtained with the VLT/MUSE integral fieldspectrograph. The Chandra images of this cluster show cavities in the X-rayemitting gas, which were produced by the expansion of the radio lobes inflatedby the active galactic nucleus (AGN). Our exquisite MUSE data show withunprecedented detail the complex network of line emitting filaments enshroudingthe northern X-ray cavity. We do not detect any emission lines from thesouthern cavity, with a luminosity asymmetry between the two regions higherthan about 75. The emission lines produced by the warm phase of theinterstellar medium (WIM) enable us to obtain unique information on theproperties of the emitting gas. We find dense gas (up to 270 cm-3) that makesup part of a global quasi spherical outflow that is driven by the radio source,and obtain a direct estimate of the expansion velocity of the cavities (265 kms-1). The emission lines diagnostic rules out ionization from the AGN or fromstar-forming regions, suggesting instead ionization from slow shocks or fromcosmic rays. The striking asymmetric line emission observed between the twocavities contrasts with the less pronounced differences between the north andsouth sides in the hot gas; this represents a significant new ingredient forour understanding of the process of the exchange of energy between therelativistic plasma and the external medium. We conclude that the expandingradio lobes displace the hot tenuous phase of the interstellar medium (ISM),but also impact the colder and denser ISM phases. These results show theeffects of the AGN on its host and the importance of radio mode feedback.

The VLT/MUSE view of the central galaxy in Abell 2052. Ionized gas swept by the expanding radio source