Journal
ASTROPHYSICAL JOURNAL
Volume 909, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/1538-4357/abdcb7
Keywords
Gravitational wave astronomy; Hubble constant
Categories
Funding
- United States National Science Foundation (NSF)
- Science and Technology Facilities Council (STFC) of the United Kingdom
- Max-Planck-Society (MPS)
- State of Niedersachsen/Germany
- Australian Research Council
- Netherlands Organisation for Scientific Research
- EGO consortium
- Council of Scientific and Industrial Research of India
- Department of Science and Technology, India
- Science AMP
- Engineering Research Board (SERB), India
- Ministry of Human Resource Development, India
- Spanish Agencia Estatal de Investigacion
- Vice-presidencia i Conselleria d'Innovacio Recerca i Turisme
- Conselleria d'Educacio i Universitat del Govern de les Illes Balears
- Conselleria d'Educacio Investigacio Cultura i Esport de la Generalitat Valenciana
- National Science Centre of Poland
- Swiss National Science Foundation (SNSF)
- Russian Foundation for Basic Research
- Russian Science Foundation
- European Commission
- European Regional Development Funds (ERDF)
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- Hungarian Scientific Research Fund (OTKA)
- Lyon Institute of Origins (LIO)
- Paris Ile-de-France Region
- National Research, Development and Innovation Office Hungary (NKFIH)
- National Research Foundation of Korea
- Province of Ontario through the Ministry of Economic Development and Innovation
- Natural Science and Engineering Research Council Canada
- Canadian Institute for Advanced Research
- Brazilian Ministry of Science, Technology, Innovations, and Communications
- International Center for Theoretical Physics South American Institute for Fundamental Research (ICTP-SAIFR)
- Research Grants Council of Hong Kong
- National Natural Science Foundation of China (NSFC)
- Leverhulme Trust
- Ministry of Science and Technology (MOST), Taiwan
- Kavli Foundation
- Research Corporation
- Industry Canada
- STFC [ST/N005430/1, ST/T000147/1] Funding Source: UKRI
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This paper presents a joint measurement of the Hubble constant using gravitational-wave detections, including neutron star and black hole detections, in conjunction with galaxy catalogs. The updated measurement shows improvement over previous values, with an additional contribution from a well-localized detection. The results pave the way for cosmology using gravitational-wave observations with or without transient electromagnetic counterparts.
This paper presents the gravitational-wave measurement of the Hubble constant (H-0) using the detections from the first and second observing runs of the Advanced LIGO and Virgo detector network. The presence of the transient electromagnetic counterpart of the binary neutron star GW170817 led to the first standard-siren measurement of H-0. Here we additionally use binary black hole detections in conjunction with galaxy catalogs and report a joint measurement. Our updated measurement is H-0 = 69(-8)(+16) km s(-1) Mpc(-1) (68.3% of the highest density posterior interval with a flat-in-log prior) which is an improvement by a factor of 1.04 (about 4%) over the GW170817-only value of 69(-8)(+17) km s(-1) Mpc(-1). A significant additional contribution currently comes from GW170814, a loud and well-localized detection from a part of the sky thoroughly covered by the Dark Energy Survey. With numerous detections anticipated over the upcoming years, an exhaustive understanding of other systematic effects are also going to become increasingly important. These results establish the path to cosmology using gravitational-wave observations with and without transient electromagnetic counterparts.
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