Abstract
We perform a wide parameter-space search for continuous gravitational waves over the whole sky and over a large range of values of the frequency and the first spin-down parameter. Our search method is based on the Hough transform, which is a semicoherent, computationally efficient, and robust pattern recognition technique. We apply this technique to data from the second science run of the LIGO detectors and our final results are all-sky upper limits on the strength of gravitational waves emitted by unknown isolated spinning neutron stars on a set of narrow frequency bands in the range . The best upper limit on the gravitational-wave strain amplitude that we obtain in this frequency range is .
14 More- Received 13 September 2005
DOI:https://doi.org/10.1103/PhysRevD.72.102004
©2005 American Physical Society