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 weak lensing data from the  Hubble Space Telescope ( HST )/Space Telescope A901/902 Galaxy Evolution Survey (STAGES) survey 1  to study the three‐dimensional spatial distribution of matter and galaxies in the Abell 901/902 supercluster complex. Our method improves over the existing 3D lensing mapping techniques by calibrating and removing redshift bias and accounting for the effects of the radial elongation of 3D structures. We also include the first detailed noise analysis of a 3D lensing map, showing that even with deep  HST ‐quality data, only the most massive structures, for example  M  200 ≳ 10 15  M ⊙   h  −1  at  z ∼ 0.8, can be resolved in 3D with any reasonable redshift accuracy (Δ z ≈ 0.15). We compare the lensing map to the stellar mass distribution and find luminous counterparts for all mass peaks detected with a peak significance &gt;3σ. We see structures in and behind the  z = 0.165 foreground supercluster, finding structure directly behind the A901b cluster at  z ∼ 0.6 and also behind the south‐west (SW) group at  z ∼ 0.7. This 3D structure viewed in projection has no significant impact on recent mass estimates of A901b or the SW group components SWa and SWb.

Spatial matter density mapping of the STAGES Abell A901/2 supercluster field with 3D lensing