Final published version, 6.65 MB, PDF document
Available under license: CC BY: Creative Commons Attribution 4.0 International License
Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - GWTC-1
T2 - A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
AU - LIGO Scientific Collaboration and Virgo Collaboration
AU - Pitkin, M
PY - 2019/9/4
Y1 - 2019/9/4
N2 - We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 M⊙ during the first and second observing runs of the advanced gravitationalwave detector network. During the first observing run (O1), from September 12, 2015 to January 19, 2016, gravitational waves from three binary black hole mergers were detected. The second observing run (O2), which ran from November 30, 2016 to August 25, 2017, saw the first detection of gravitational waves from a binary neutron star inspiral, in addition to the observation of gravitational waves from a total of seven binary black hole mergers, four of which we report here for the first time: GW170729, GW170809, GW170818, and GW170823. For all significant gravitational-wave events, we provide estimates of the source properties. The detected binary black holes have total masses between 18.6þ3.2 −0.7 M⊙ and84.4þ15.8 −11.1 M⊙ and range in distance between 320þ120 −110 and 2840þ1400 −1360 Mpc. No neutron star–black hole mergers were detected. In addition to highly significant gravitational-wave events, we also provide a listof marginal event candidates with an estimated false-alarm rate less than 1 per 30 days. From these results over the first two observing runs, which include approximately one gravitational-wave detection per 15 days of data searched, we infer merger rates at the 90% confidence intervals of 110 − 3840 Gpc−3 y−1for binary neutron stars and 9.7 − 101 Gpc−3 y−1 for binary black holes assuming fixed population distributions and determine a neutron star–black hole merger rate 90% upper limit of 610 Gpc−3 y−1.
AB - We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 M⊙ during the first and second observing runs of the advanced gravitationalwave detector network. During the first observing run (O1), from September 12, 2015 to January 19, 2016, gravitational waves from three binary black hole mergers were detected. The second observing run (O2), which ran from November 30, 2016 to August 25, 2017, saw the first detection of gravitational waves from a binary neutron star inspiral, in addition to the observation of gravitational waves from a total of seven binary black hole mergers, four of which we report here for the first time: GW170729, GW170809, GW170818, and GW170823. For all significant gravitational-wave events, we provide estimates of the source properties. The detected binary black holes have total masses between 18.6þ3.2 −0.7 M⊙ and84.4þ15.8 −11.1 M⊙ and range in distance between 320þ120 −110 and 2840þ1400 −1360 Mpc. No neutron star–black hole mergers were detected. In addition to highly significant gravitational-wave events, we also provide a listof marginal event candidates with an estimated false-alarm rate less than 1 per 30 days. From these results over the first two observing runs, which include approximately one gravitational-wave detection per 15 days of data searched, we infer merger rates at the 90% confidence intervals of 110 − 3840 Gpc−3 y−1for binary neutron stars and 9.7 − 101 Gpc−3 y−1 for binary black holes assuming fixed population distributions and determine a neutron star–black hole merger rate 90% upper limit of 610 Gpc−3 y−1.
U2 - 10.1103/PhysRevX.9.031040
DO - 10.1103/PhysRevX.9.031040
M3 - Journal article
VL - 9
JO - Physical Review X
JF - Physical Review X
SN - 2160-3308
IS - 3
M1 - 031040
ER -