Precise peculiar velocities from gravitational waves accompanied by electromagnetic signals and cosmological applications

Abstract

Peculiar velocities are a precious tool to study the large-scale distribution of matter in the local universe and test cosmological models. However, present measurements of peculiar velocities are based on empirical distance indicators, which introduce large error bars. Here we present a new method to measure the peculiar velocities, by directly estimating luminosity distances through waveform signals from inspiralling compact binaries and measuring redshifts from electromagnetic (EM) counterparts. In the future, with the distance uncertainty of GW events reducing to $0.1$ per cent by future GW detectors, the uncertainty of the peculiar velocity can be reduced to $10$ km/s at 100 mega parsecs. We find that dozens of GW events with EM counterparts can provide a Hubble constant $H_0$ uncertainty of $0.5\%$ and the growth rate of structure with a $0.6\%$ precision in the third-generation ground-base GW detectors, which can reconcile the $H_0$ tension and determine the origins for cosmic accelerated expansion.

6 pages, 5 figures, accepted for publication in Phys. Rev. D

References in corpus (14)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
• A gravitational-wave standard siren measurement of the Hubble constant
• A test of the nature of cosmic acceleration using galaxy redshift distortions
• Dark energy two decades after: Observables, probes, consistency tests
• Kinematics of the Local Universe XIII. 21-cm line measurements of 452 galaxies with the Nançay radiotelescope, JHK Tully-Fisher relation and preliminary maps of the peculiar velocity field
• Evolution of the $f{\sigma }_8$ tension with the Planck15/$\Lambda$CDM determination and implications for modified gravity theories
• The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817
• The 6dF Galaxy Survey: Peculiar Velocity Field and Cosmography
• The environment of the binary neutron star merger GW170817
• Localization accuracy of compact binary coalescences detected by the third-generation gravitational-wave detectors and implication for cosmology
• The 6dF Galaxy Velocity Survey: Cosmological constraints from the velocity power spectrum

Cited by in corpus (7)

• The Science of the Einstein Telescope
• Quasi-periodic Eruptions from Helium Envelope of Hydrogen-deficient Stars Stripped by Supermassive Black Holes
• Probing gravity and growth of structure with gravitational waves and galaxies' peculiar velocity
• An accurate method to determine the systematics due to the peculiar velocities of galaxies in measuring the Hubble constant from gravitational wave standard sirens
• A bright electromagnetic counterpart to extreme mass ratio inspirals
• Moving gravitational wave sources at cosmological distances: Impact on the measurement of the Hubble constant
• Statistically bias-minimized peculiar velocity catalogs from Gibbs point processes and Bayesian inference