A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo
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A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo. / The LIGO Scientific Collaboration; Virgo Collaboration; Abbott, B. P.; Harry, I. W.; Keitel, D.; Lundgren, A. P.; Macas, R.; McIsaac, C.; Nuttall, L. K.; Wang, S.; Williamson, A. R.; Zhao, G.
In: Astrophysical Journal, Vol. 909, No. 2, 218, 19.03.2021, p. 1-18.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - A gravitational-wave measurement of the Hubble constant following the second observing run of Advanced LIGO and Virgo
AU - The LIGO Scientific Collaboration
AU - Virgo Collaboration
AU - Abbott, B. P.
AU - Abbott, R.
AU - Abbott, T. D.
AU - Abraham, S.
AU - Acernese, F.
AU - Ackley, K.
AU - Adams, C.
AU - Adhikari, R. X.
AU - Adya, V. B.
AU - Affeldt, C.
AU - Agathos, M.
AU - Agatsuma, K.
AU - Aggarwal, N.
AU - Aguiar, O. D.
AU - Aiello, L.
AU - Ain, A.
AU - Ajith, P.
AU - Allen, G.
AU - Allocca, A.
AU - Aloy, M. A.
AU - Altin, P. A.
AU - Amato, A.
AU - Anand, S.
AU - Ananyeva, A.
AU - Anderson, S. B.
AU - Anderson, W. G.
AU - Angelova, S. V.
AU - Antier, S.
AU - Appert, S.
AU - Arai, K.
AU - Araya, M. C.
AU - Areeda, J. S.
AU - Ar ne, M.
AU - Arnaud, N.
AU - Aronson, S. M.
AU - Arun, K. G.
AU - Ascenzi, S.
AU - Ashton, G.
AU - Aston, S. M.
AU - Astone, P.
AU - Harry, I. W.
AU - Jones, J. D.
AU - Keitel, D.
AU - Lundgren, A. P.
AU - Macas, R.
AU - McIsaac, C.
AU - Nuttall, L. K.
AU - Wang, S.
AU - Williamson, A. R.
AU - Zhao, G.
PY - 2021/3/19
Y1 - 2021/3/19
N2 - This paper presents the gravitational-wave measurement of the Hubble constant (H0) 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 H0. Here we additionally use binary black hole detections in conjunction with galaxy catalogs and report a joint measurement. Our updated measurement is H0 = 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 +17 -8 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.
AB - This paper presents the gravitational-wave measurement of the Hubble constant (H0) 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 H0. Here we additionally use binary black hole detections in conjunction with galaxy catalogs and report a joint measurement. Our updated measurement is H0 = 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 +17 -8 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.
KW - RCUK
KW - STFC
KW - gravitational wave astronomy
KW - Hubble constant
UR - http://www.scopus.com/inward/record.url?scp=85103308100&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/abdcb7
DO - 10.3847/1538-4357/abdcb7
M3 - Article
AN - SCOPUS:85103308100
VL - 909
SP - 1
EP - 18
JO - The Astrophysical Journal
JF - The Astrophysical Journal
SN - 0004-637X
IS - 2
M1 - 218
ER -
ID: 27056185