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

When a gravitational wave passes by a massive object, its trajectory getscurved which can result in multiple images separated by a time delay, aphenomenon known as strong lensing. Although gravitational wave lensing has notbeen observed yet, it is currently predicted that it will be possible to detectwith third-generation detectors. Moreover, the future detectors are expected tosignificantly increase the gravitational-wave detection rate up to $O(10^5 -10^6)$ $\mathrm{yr}^{-1}$ which could also increase the chance of observinggravitational wave lensing. Therefore, it is necessary to develop accurate andefficient tools to filter potentially lensed gravitational-wave signal pairs.In the study, we propose three statistics to analyze the overlap of two skylocalization probability maps, which could provide a quick preliminary lensinganalysis of two gravitational-wave signals within 3 seconds. We simulate 200lensed pairs of gravitational-wave signals for 5 signal-to-noise ratios toinvestigate the performance of the search methodology. By setting up athreshold with a specific false positive rate $\mathrm{FPR} = 10^{-2}$ for thethree overlap statistics, we conclude that it is possible to filter out morethan $99\%$ of the non-lensed event pairs while keeping all lensed event pairs.

Using overlap of sky localization probability maps for filtering potentially lensed pairs of gravitational-wave signals