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 characterization of the Intra-Cluster Medium (ICM) properties ofhigh-redshift galaxy clusters is fundamental to our understanding oflarge-scale structure formation processes. We present the results of amulti-wavelength analysis of the very massive cluster MOO J1142$+$1527 at aredshift $z = 1.2$ discovered as part of the Massive and Distant Clusters ofWISE Survey (MaDCoWS). This analysis is based on high angular resolution$Chandra$ X-ray and NIKA2 Sunyaev-Zel'dovich (SZ) data. Although the X-ray datahave only about 1700 counts, we are able to determine the ICM thermodynamicradial profiles, namely temperature, entropy, and hydrostatic mass. These havebeen obtained with unprecedented precision at this redshift and up to$0.7R_{500}$, thanks to the combination of high-resolution X-ray and SZ data.The comparison between the galaxy distribution mapped in infrared by $Spitzer$and the morphological properties of the ICM derived from the combined analysisof the $Chandra$ and NIKA2 data leads us to the conclusion that the cluster isan on-going merger. We measure the hydrostatic mass profile of the cluster infour angular sectors centered on the large-scale X-ray centroid. This allows usto estimate a systematic uncertainty on the cluster total mass thatcharacterizes both the impact of the observed deviations from sphericalsymmetry and of the core dynamics on the mass profile. We further combine theX-ray and SZ data at the pixel level to obtain maps of the temperature andentropy distributions averaged along the line of sight. We find a relativelylow entropy core at the position of the X-ray peak and high temperature regionslocated on its south and west sides. The increase in ICM temperature at thelocation of the SZ peak is expected given the merger dynamics. (abridged)

Unveiling the merger dynamics of the most massive MaDCoWS cluster at $z = 1.2$ from a multi-wavelength mapping of its intracluster medium properties