Measuring the Hubble constant with black sirens

Abstract

We investigate a recently proposed method for measuring the Hubble constant from gravitational wave detections of binary black hole coalescences without electromagnetic counterparts. In the absence of a direct redshift measurement, the missing information on the left-hand side of the Hubble-Lemaître law is provided by the statistical knowledge on the redshift distribution of sources. We assume that source distribution in redshift depends on unknown hyperparameters, modeling our ignorance of the astrophysical binary black hole distribution. With tens of thousands of these "black sirens" -- a realistic figure for the third generation detectors Einstein Telescope and Cosmic Explorer -- an observational constraint on the value of the Hubble parameter at percent level can be obtained. This method has the advantage of not relying on electromagnetic counterparts, which accompany a very small fraction of gravitational wave detections, nor on often unavailable or incomplete galaxy catalogs.

10 pages, 12 figures. Typos corrected in v2

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Cited by in corpus (14)

• Challenges for $\Lambda$CDM: An update
• Binary black holes population and cosmology in new lights: Signature of PISN mass and formation channel in GWTC-3
• The Hitchhiker's guide to the galaxy catalog approach for gravitational wave cosmology
• Constraining the Hubble constant to a precision of about 1% using multi-band dark standard siren detections
• Prospects for measuring the Hubble constant and dark energy using gravitational-wave dark sirens with neutron star tidal deformation
• Exploiting the Einstein Telescope to solve the Hubble tension
• Joint constraints on cosmological parameters using future multi-band gravitational wave standard siren observations
• Cosmography with Standard Sirens from the Einstein Telescope
• Future prospects on testing extensions to $\Lambda$CDM through the weak lensing of gravitational waves
• Constraining $\Lambda$CDM cosmological parameters with Einstein Telescope mock data
• The lure of sirens: joint distance and velocity measurements with third generation detectors
• Unveiling the Universe with Emerging Cosmological Probes
• Climbing out of the shadows: building the distance ladder with black hole images
• Modelling the host galaxies of binary compact object mergers with observational scaling relations