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

In this paper, we present a new method of measuring Hubble parameter($H(z)$),making use of the anisotropy of luminosity distance($d_{L}$), and the analysisof gravitational wave(GW) of neutron star(NS) binary system. The method hasnever been put into practice before due to the lack of the ability of detectingGW. LIGO's success in detecting GW of black hole(BH) binary system mergerannounced the possibility of this new method. We apply this method to severalGW detecting projects, including Advanced LIGO(Adv-LIGO), EinsteinTelescope(ET) and DECIGO, finding that the $H(z)$ by Adv-LIGO and ET is of badaccuracy, while the $H(z)$ by DECIGO shows a good accuracy. We use the errorinformation of $H(z)$ by DECIGO to simulate $H(z)$ data at every 0.1 redshiftspan, and put the mock data into the forecasting of cosmological parameters.Compared with the available 38 observed $H(z)$ data(OHD), mock data shows anobviously tighter constraint on cosmological parameters, and a concomitantlyhigher value of Figure of Merit(FoM). For a 3-year-observation by standardsirens of DECIGO, the FoM value is as high as 834.9. If a 10-year-observationis launched, the FoM could reach 2783.1. For comparison, the FoM of 38 actualobserved $H(z)$ data is 9.3. These improvement indicates that the new methodhas great potential in further cosmological constraints.

Constraint on cosmological parameters by Hubble parameter from gravitational wave standard sirens of neutron star binary system