Journal
PHYSICAL REVIEW X
Volume 9, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.9.031040
Keywords
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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
- Netherlands Organisation for Scientific Research
- Council of Scientific and Industrial Research of India
- Department of Science and Technology, India
- Science and Engineering Research Board (SERB), India
- Ministry of Human Resource Development, India
- Spanish Agencia Estatal de Investigacion
- Vicepresidencia 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
- Research Corporation
- Ministry of Science and Technology (MOST), Taiwan
- Kavli Foundation
- Industry Canada
- EPSRC [2161515] Funding Source: UKRI
- STFC [ST/J000019/1, 2039699, ST/J00166X/1, ST/S000550/1, 1947199, ST/N000072/1, ST/K005014/1, Gravitational Waves, PPA/G/S/2002/00652, ST/N00003X/1, ST/M005844/1, 1802894, 1945971, ST/V001396/1, ST/K005014/2, ST/N005406/1, ST/R00045X/1, ST/H002006/1, ST/S000305/1, 1947165, 2142081, ST/N005422/1, ST/K000845/1, ST/T000147/1, ST/N005430/1, 1654298, 1653089, ST/I006269/1, 1938553, ST/N005406/2, 1802888, ST/N000633/1, ST/L000954/1] Funding Source: UKRI
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We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 M-circle dot during the first and second observing runs of the advanced gravitational-wave 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 18.6(-0.7)(+3.2) M-circle dot and 84.4(-11.1)(+15.8) M-circle dot and range in distance between 320(-110)(+120) and 2840(-1360)(+1400) Mpc. No neutron star-black hole mergers were detected. In addition to highly significant gravitational-wave events, we also provide a list of 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(-1) for 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).
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