Title
All-Sky LIGO Search for Periodic Gravitational Waves In the Early Fifth-Science-Run Data
Document Type
Article
Publication Date
3-20-2009
Journal / Book Title
Physical Review Letters
Abstract
We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50–1100 Hz and with the frequency’s time derivative in the range −5×10−9–0 Hz s−1. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10−24 are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10−6, the search is sensitive to distances as great as 500 pc.
DOI
10.1103/PhysRevLett.102.111102
MSU Digital Commons Citation
Abbott, B. P.; Abbott, R.; Adhikari, R.; Ajith, P.; Allen, B.; Allen, G.; Amin, R. S.; Anderson, S. B.; Anderson, W. G.; and Martin, Rodica, "All-Sky LIGO Search for Periodic Gravitational Waves In the Early Fifth-Science-Run Data" (2009). Department of Physics and Astronomy Faculty Scholarship and Creative Works. 6.
https://digitalcommons.montclair.edu/physics-astron-facpubs/6
Published Citation
All-Sky LIGO Search for Periodic Gravitational Waves in the Early Fifth-Science-Run Data B. P. Abbott et al. (LIGO Scientific Collaboration) Phys. Rev. Lett. 102, 111102 – Published 20 March 2009