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

Strongly lensed variable quasars can serve as precise cosmological probes,provided that time delays between the image fluxes can be accurately measured.A number of methods have been proposed to address this problem. In this paper,we explore in detail a new approach based on kernel regression estimates, whichis able to estimate a single time delay given several datasets for the samequasar. We develop realistic artificial data sets in order to carry outcontrolled experiments to test of performance of this new approach. We alsotest our method on real data from strongly lensed quasar Q0957+561 and compareour estimates against existing results.

Kernel regression estimates of time delays between gravitationally lensed fluxes