期刊
PHYSICAL REVIEW LETTERS
卷 123, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.161102
关键词
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资金
- U.S. 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
- 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 (NKFI)
- 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/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/N005406/2, 1802888, 1938553, ST/N000633/1, ST/I006269/1, 1653089, 1654298, ST/N005430/1, ST/T000147/1, ST/K000845/1, ST/N005422/1, 2142081, 1947165, ST/S000305/1, ST/H002006/1, 2039699] Funding Source: UKRI
We present a search for subsolar mass ultracompact objects in data obtained during Advanced LIGO's second observing run. In contrast to a previous search of Advanced LIGO data from the first observing run, this search includes the effects of component spin on the gravitational waveform. We identify no viable gravitational-wave candidates consistent with subsolar mass ultracompact binaries with at least one component between 0.2 M-circle dot-1.0 M-circle dot. We use the null result to constrain the binary merger rate of (0.2 M-circle dot, 0.2 M-circle dot) binaries to be less than 3.7 x 10(5) Gpc(-3) yr(-1) and the binary merger rate of (1.0 M-circle dot, 1.0 M-circle dot) binaries to be less than 5.2 x 10(3) Gpc(-3) yr(-1). Subsolar mass ultracompact objects are not expected to form via known stellar evolution channels, though it has been suggested that primordial density fluctuations or particle dark matter with cooling mechanisms and/or nuclear interactions could form black holes with subsolar masses. Assuming a particular primordial black hole (PBH) formation model, we constrain a population of merging 0.2 M-circle dot black holes to account for less than 16% of the dark matter density and a population of merging 1.0 M-circle dot black holes to account for less than 2% of the dark matter density. We discuss how constraints on the merger rate and dark matter fraction may be extended to arbitrary black hole population models that predict subsolar mass binaries.
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