Title

First all-sky upper limits from LIGO on the strength of periodic gravitational waves using the Hough transform

Authors

B. Abbott, California Institute of Technology
R. Abbott, LIGO Livingston
R. Adhikari, California Institute of Technology
A. Ageev, Lomonosov Moscow State University
J. Agresti, California Institute of Technology
B. Allen, University of Wisconsin-Milwaukee
J. Allen, Massachusetts Institute of Technology
R. Amin, Louisiana State University
S. B. Anderson, California Institute of Technology
W. G. Anderson, University of Texas at Brownsville and Texas Southmost College
M. Araya, California Institute of Technology
H. Armandula, California Institute of Technology
M. Ashley, Pennsylvania State University
F. Asiri, California Institute of Technology
P. Aufmuth, Gottfried Wilhelm Leibniz Universität Hannover
C. Aulbert, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
S. Babak, Cardiff University
R. Balasubramanian, Cardiff University
S. Ballmer, Massachusetts Institute of Technology
B. C. Barish, California Institute of Technology
C. Barker, LIGO Hanford
D. Barker, LIGO Hanford
M. Barnes, California Institute of Technology
B. Barr, University of Glasgow
M. A. Barton, California Institute of Technology
K. Bayer, Massachusetts Institute of Technology
R. Beausoleil, Stanford University
K. Belczynski, Northwestern University
R. Bennett, University of Glasgow
S. J. Berukoff, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
J. Betzwieser, Massachusetts Institute of Technology
B. Bhawal, California Institute of Technology
I. A. Bilenko, Lomonosov Moscow State University

Document Type

Article

Publication Date

11-15-2005

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 200-400 Hz. The best upper limit on the gravitational-wave strain amplitude that we obtain in this frequency range is 4.43×10-23. © 2005 The American Physical Society.

Publication Source (Journal or Book title)

Physical Review D - Particles, Fields, Gravitation and Cosmology

This document is currently not available here.

Share

COinS