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 present a lens model for the cluster SPT-CLJ0615$-$5746, which is thehighest redshift ($z=0.972$) system in the Reionization of Lensing ClustersSurvey (RELICS), making it the highest redshift cluster for which a full stronglens model is published. We identify three systems of multiply-imaged lensedgalaxies, two of which we spectroscopically confirm at $z=1.358$ and $z=4.013$,which we use as constraints for the model. We find a foreground structure at$z\sim0.4$, which we include as a second cluster-sized halo in one of ourmodels; however two different statistical tests find the best-fit modelconsists of one cluster-sized halo combined with three individually optimizedgalaxy-sized halos, as well as contributions from the cluster galaxiesthemselves. We find the total projected mass density within $r=26.7"$ (theregion where the strong lensing constraints exist) to be$M=2.51^{+0.15}_{-0.09}\times 10^{14}$~M$_{\odot}$. If we extrapolate out to$r_{500}$, our projected mass density is consistent with the mass inferred fromweak lensing and from the Sunyaev-Zel'dovich effect($M\sim10^{15}$~M$_{\odot}$). This cluster is lensing a previously reported$z\sim10$ galaxy, which, if spectroscopically confirmed, will be thehighest-redshift strongly lensed galaxy known.

RELICS: A Strong Lens Model for SPT-CLJ0615-5746, a z=0.972 Cluster