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

Context. Upcoming weak lensing surveys such as Euclid will provide anunprecedented opportunity to quantify the geometry and topology of the cosmicweb, in particular in the vicinity of lensing clusters. Aims. Understanding theconnectivity of the cosmic web with unbiased mass tracers, such as weaklensing, is of prime importance to probe the underlying cosmology, seekdynamical signatures of dark matter, and quantify environmental effects ongalaxy formation. Methods. Mock catalogues of galaxy clusters are extractedfrom the N-body PLUS simulation. For each cluster, the aperture multipolarmoments of the convergence are calculated in two annuli (inside and outside thevirial radius). By stacking their modulus, a statistical estimator is built tocharacterise the angular mass distribution around clusters. The moments arecompared to predictions from perturbation theory and spherical collapse.Results. The main weakly chromatic excess of multipolar power on large scalesis understood as arising from the contraction of the primordial cosmic webdriven by the growing potential well of the cluster. Besides this boost, thequadrupole prevails in the cluster (ellipsoidal) core, while at the outskirts,harmonic distortions are spread on small angular modes, and trace thenon-linear sharpening of the filamentary structures. Predictions for the signalamplitude as a function of the cluster-centric distance, mass, and redshift arepresented. The prospects of measuring this signal are estimated for current andfuture lensing data sets. Conclusions. The Euclid mission should provide allthe necessary information for studying the cosmic evolution of the connectivityof the cosmic web around lensing clusters using multipolar moments and probingunique signatures of, for example, baryons and warm dark matter.

Multipolar moments of weak lensing signal around clusters. Weighing filaments in harmonic space