期刊
PHYSICAL REVIEW LETTERS
卷 107, 期 27, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.271102
关键词
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资金
- Australian Research Council
- Commonwealth of Australia
- Council of Scientific and Industrial Research of India
- Istituto Nazionale di Fisica Nucleare of Italy
- Spanish Ministerio de Educacion y Ciencia
- Conselleria d'Economia Hisenda i Innovacio of the Govern de les Illes Balears
- Foundation for Fundamental Research on Matter
- Polish Ministry of Science and Higher Education
- Foundation for Polish Science
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- The National Aeronautics and Space Administration
- Carnegie Trust
- Leverhulme Trust
- David and Lucile Packard Foundation
- Research Corporation
- Alfred P. Sloan Foundation
- Netherlands Organisation for Scientific Research
- Science and Technology Facilities Council [ST/I001026/1, Gravitational Waves, ST/I006242/1 Gravitational Waves, ST/I001085/1, ST/F01032X/1, PP/F00110X/1, ST/I000887/1 Gravitational Waves, PP/F001118/1, ST/G504284/1, ST/I006242/1, ST/I001026/1 Gravitational Waves, ST/I000887/1, ST/I006285/1] Funding Source: researchfish
- STFC [ST/I000887/1, PP/F001118/1, ST/I006285/1, ST/I001026/1, ST/G504284/1, PP/F00110X/1, Gravitational Waves, ST/F01032X/1, ST/I006242/1, ST/I001085/1] Funding Source: UKRI
- Division Of Physics
- Direct For Mathematical & Physical Scien [0854790, 0969820, 0757058, 0855686] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [0905184] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [10J02592] Funding Source: KAKEN
The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2 - 20 x 10(-50) strain(2) Hz(-1) and 5 - 35 x 10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as approximate to 7 - 10(-25) in the most sensitive frequency range near 160 Hz.
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