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

Two types of distance measurement are important in cosmological observations,the angular diameter distance $d_A$ and the luminosity distance $d_L$. In thepresent work, we carried out an assessment of the theoretical relation betweenthese two distance measurements, namely the cosmic distance duality relation,from type Ia supernovae (SN-Ia) data, the Cosmic Chronometer (CC) Hubbleparameter data, and baryon acoustic oscillation (BAO) data using GaussianProcess. The luminosity distance curve and the angular diameter distance curveare extracted from the SN-Ia data and the combination of BAO and CC datarespectively using the Gaussian Process. The distance duality relation ischecked by a non-parametric reconstruction using the reconstructed $H$, $d_L$,and the volume-averaged distance $D_v$. We compare the results obtained fordifferent choices of the covariance function employed in the Gaussian Process.It is observed that the theoretical distance duality relation is in wellagreement with the present analysis in 2$\sigma$ for the overlapping redshiftdomain $0 \leq z \leq 2$ of the reconstruction.

Assessment of the cosmic distance duality relation using Gaussian Process