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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The physics of gravity on cosmological scales affects both the rate ofassembly of large-scale structure, and the gravitational lensing of backgroundlight through this cosmic web. By comparing the amplitude of these differentobservational signatures, we can construct tests that can distinguish generalrelativity from its potential modifications. We used the latest weakgravitational lensing dataset from the Kilo-Degree Survey, KiDS-1000, inconjunction with overlapping galaxy spectroscopic redshift surveys BOSS and2dFLenS, to perform the most precise existing amplitude-ratio test. We measuredthe associated E_G statistic with 15-20% errors, in five dz = 0.1 tomographicredshift bins in the range 0.2 < z < 0.7, on projected scales up to 100 Mpc/h.The scale-independence and redshift-dependence of these measurements areconsistent with the theoretical expectation of general relativity in a Universewith matter density Omega_m = 0.27 +/- 0.04. We demonstrate that our resultsare robust against different analysis choices, including schemes for correctingthe effects of source photometric redshift errors, and compare the performanceof angular and projected galaxy-galaxy lensing statistics.

Testing gravity using galaxy-galaxy lensing and clustering amplitudes in KiDS-1000, BOSS and 2dFLenS