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

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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 analysis of gravitational wave(GW) of neutron star(NS) binary system.

• The method has never been put into practice before due to the lack of the ability of detecting GW.
• LIGO's success in detecting GW of black hole(BH) binary system merger announced the possibility of this new method.
• We apply this method to several GW detecting projects, including Advanced LIGO(Adv-LIGO), Einstein Telescope(ET) and DECIGO, finding that the $H(z)$ by Adv-LIGO and ET is of bad accuracy, while the $H(z)$ by DECIGO shows a good accuracy.