Directional Limits on Persistent Gravitational Waves Using LIGO S5 Science Data
Name
Abadie-2011-Directional Limits on Persistent GravitationalWaves.pdf
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Author(s)
Barnum, Sam
Barsotti, Lisa
Blackburn, Lindy L.
Bodiya, Timothy Paul
Corbitt, Thomas R.
Donovan, Frederick J.
Evans, Matthew J.
Foley, Stephany
Fritschel, Peter K.
Harry, Gregory
Date Issued
December 2011
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Abadie, J. et al. “Directional Limits on Persistent Gravitational Waves Using LIGO S5 Science Data.” Physical Review Letters 107.27 (2011): n. pag. Web. 24 Feb. 2012. © 2011 American Physical Society
Version
Final published version
Abstract
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 2-20×10p[superscript -50] strain[superscript 2] Hz[superscript -1] and 5-35×10[superscript -49] strain[superscript 2] Hz[superscript -1] sr[superscript -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 ≈7×10[superscript -25] in the most sensitive frequency range near 160 Hz.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Physics
LIGO (Observatory : Massachusetts Institute of Technology)
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.107.271102
