First Cross-correlation Analysis of Interferometric and Resonant-bar Gravitational-wave Data for Stochastic Backgrounds

Authors

• B. Abbott, California Institute of Technology
• R. Abbott, California Institute of Technology
• R. Adhikari, California Institute of Technology
• J. Agresti, California Institute of Technology
• P. Ajith, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• B. Allen, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• R. Amin, Louisiana State University
• S. B. Anderson, California Institute of Technology
• W. G. Anderson, University of Wisconsin-Milwaukee
• M. Arain, University of Florida
• M. Araya, California Institute of Technology
• H. Armandula, California Institute of Technology
• M. Ashley, The Australian National University
• S. Aston, University of Birmingham
• P. Aufmuth, Universitat de les Illes Balears
• C. Aulbert, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• S. Babak, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• S. Ballmer, California Institute of Technology
• H. Bantilan, Carleton College, USA
• B. C. Barish, California Institute of Technology
• C. Barker, LIGO Livingston
• D. Barker, LIGO Livingston
• B. Barr, University of Glasgow
• P. Barriga, The University of Western Australia
• M. A. Barton, University of Glasgow
• K. Bayer, LIGO Hanford
• K. Belczynski, Northwestern University
• J. Betzwieser, LIGO Hanford
• P. T. Beyersdorf, San Jose State University
• B. Bhawal, California Institute of Technology
• I. A. Bilenko, Lomonosov Moscow State University
• Tiffany Z. Summerscales, Andrews UniversityFollow

Document Type

Article

Publication Date

7-9-2007

Abstract

Data from the LIGO Livingston interferometer and the ALLEGRO resonant-bar detector, taken during LIGO's fourth science run, were examined for cross correlations indicative of a stochastic gravitational-wave background in the frequency range 850-950 Hz, with most of the sensitivity arising between 905 and 925 Hz. ALLEGRO was operated in three different orientations during the experiment to modulate the relative sign of gravitational-wave and environmental correlations. No statistically significant correlations were seen in any of the orientations, and the results were used to set a Bayesian 90% confidence level upper limit of Ωgw(f)≤1.02, which corresponds to a gravitational-wave strain at 915 Hz of 1.5×10-23Hz-1/2. In the traditional units of h1002Ωgw(f), this is a limit of 0.53, 2 orders of magnitude better than the previous direct limit at these frequencies. The method was also validated with successful extraction of simulated signals injected in hardware and software. © 2007 The American Physical Society.

Journal Title

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volume

76

Issue

2

DOI

https://doi.org/10.1103/PhysRevD.76.022001

First Department

Physics

Recommended Citation

Abbott, B.; Abbott, R.; Adhikari, R.; Agresti, J.; Ajith, P.; Allen, B.; Amin, R.; Anderson, S. B.; Anderson, W. G.; Arain, M.; Araya, M.; Armandula, H.; Ashley, M.; Aston, S.; Aufmuth, P.; Aulbert, C.; Babak, S.; Ballmer, S.; Bantilan, H.; Barish, B. C.; Barker, C.; Barker, D.; Barr, B.; Barriga, P.; Barton, M. A.; Bayer, K.; Belczynski, K.; Betzwieser, J.; Beyersdorf, P. T.; Bhawal, B.; Bilenko, I. A.; and Summerscales, Tiffany Z., "First Cross-correlation Analysis of Interferometric and Resonant-bar Gravitational-wave Data for Stochastic Backgrounds" (2007). Faculty Publications. 1987.
https://digitalcommons.andrews.edu/pubs/1987

Acknowledgements

Retrieved March 5, 2021 from https://arxiv.org/pdf/gr-qc/0703068.pdf