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Prospects for measuring the Hubble constant with neutron-star–black-hole mergers

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Title: Prospects for measuring the Hubble constant with neutron-star–black-hole mergers
Authors: Feeney, SM
Peiris, HV
Nissanke, SM
Mortlock, DJ
Item Type: Journal Article
Abstract: Gravitational wave (GW) and electromagnetic (EM) observations of neutron-star-black-hole (NSBH) mergers can provide precise local measurements of the Hubble constant (H0), ideal for resolving the current H0 tension. We perform end-to-end analyses of realistic populations of simulated NSBHs, incorporating both GW and EM selection for the first time. We show that NSBHs could achieve unbiased 1.5%–2.4% precision H0 estimates by 2030. The achievable precision is strongly affected by the details of spin precession and tidal disruption, highlighting the need for improved modeling of NSBH mergers.
Issue Date: 30-Apr-2021
Date of Acceptance: 12-Mar-2021
URI: http://hdl.handle.net/10044/1/88618
DOI: 10.1103/physrevlett.126.171102
ISSN: 0031-9007
Publisher: American Physical Society (APS)
Journal / Book Title: Physical Review Letters
Volume: 126
Issue: 17
Copyright Statement: © 2021 American Physical Society.
Keywords: astro-ph.CO
astro-ph.CO
General Physics
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Publication Status: Published
Article Number: ARTN 171102
Online Publication Date: 2021-04-28
Appears in Collections:Physics
Astrophysics