Back to Search
Start Over
Directional Limits on Persistent Gravitational Waves Using LIGO S5 Science Data.
- Source :
-
Physical Review Letters . 12/31/2011, Vol. 107 Issue 27, p271102-1-271102-9. 9p. - Publication Year :
- 2011
-
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 x 10-50 strain² Hz-1 and 5 - 35 x 10-49 strain² 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 ≈ 7 x 10-25 in the most sensitive frequency range near 160 Hz. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 107
- Issue :
- 27
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 70933266
- Full Text :
- https://doi.org/10.1103/PhysRevLett.107.271102