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

We perform a joint determination of the distance–redshift relation and cosmic expansion rate at redshifts  z  = 0.44, 0.6 and 0.73 by combining measurements of the baryon acoustic peak and Alcock–Paczynski distortion from galaxy clustering in the WiggleZ Dark Energy Survey, using a large ensemble of mock catalogues to calculate the covariance between the measurements. We find that  D  A ( z ) = (1205 ± 114, 1380 ± 95, 1534 ± 107) Mpc and  H ( z ) = (82.6 ± 7.8, 87.9 ± 6.1, 97.3 ± 7.0) km s −1  Mpc −1  at these three redshifts. Further combining our results with other baryon acoustic oscillation and distant supernovae data sets, we use a Monte Carlo Markov Chain technique to determine the evolution of the Hubble parameter  H ( z ) as a stepwise function in nine redshift bins of width Δ z  = 0.1, also marginalizing over the spatial curvature. Our measurements of  H ( z ), which have precision better than 7 per cent in most redshift bins, are consistent with the expansion history predicted by a cosmological constant dark energy model, in which the expansion rate accelerates at redshift  z  &lt; 0.7.

The WiggleZ Dark Energy Survey: joint measurements of the expansion and growth history at z < 1