All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data

Authors

• J. Abadie, California Institute of Technology
• B. P. Abbott, California Institute of Technology
• R. Abbott, California Institute of Technology
• T. D. Abbott, California State University, Fullerton
• M. Abernathy, University of Glasgow
• T. Accadia, Université Savoie Mont Blanc
• F. Acernese, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
• C. Adams, LIGO Livingston
• R. Adhikari, California Institute of Technology
• C. Affeldt, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• P. Ajith, California Institute of Technology
• B. Allen, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• G. S. Allen, Stanford University
• E. Amador Ceron, University of Wisconsin-Milwaukee
• D. Amariutei, University of Florida
• R. S. Amin, Louisiana State University
• S. B. Anderson, California Institute of Technology
• W. G. Anderson, University of Wisconsin-Milwaukee
• K. Arai, California Institute of Technology
• M. A. Arain, University of Florida
• M. C. Araya, California Institute of Technology
• S. M. Aston, University of Birmingham
• P. Astone, Istituto Nazionale di Fisica Nucleare - INFN
• D. Atkinson, LIGO Hanford
• P. Aufmuth, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• C. Aulbert, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• B. E. Aylott, University of Birmingham
• S. Babak, Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
• P. Baker, Montana State University
• G. Ballardin, European Gravitational Observatory (EGO)
• S. Ballmer, Syracuse University
• Tiffany Z. Summerscales, Andrews UniversityFollow

Document Type

Article

Publication Date

1-5-2012

Abstract

We report on an all-sky search for periodic gravitational waves in the frequency band 50-800Hz and with the frequency time derivative in the range of 0 through -6×10-9Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our Galaxy. After recent improvements in the search program that yielded a 10× increase in computational efficiency, we have searched in two years of data collected during LIGO's fifth science run and have obtained the most sensitive all-sky upper limits on gravitational-wave strain to date. Near 150Hz our upper limit on worst-case linearly polarized strain amplitude h0 is 1×10-24, while at the high end of our frequency range we achieve a worst-case upper limit of 3.8×10-24 for all polarizations and sky locations. These results constitute a factor of 2 improvement upon previously published data. A new detection pipeline utilizing a loosely coherent algorithm was able to follow up weaker outliers, increasing the volume of space where signals can be detected by a factor of 10, but has not revealed any gravitational-wave signals. The pipeline has been tested for robustness with respect to deviations from the model of an isolated neutron star, such as caused by a low-mass or long-period binary companion. © 2012 American Physical Society.

Journal Title

Physical Review D - Particles, Fields, Gravitation and Cosmology

Volume

85

Issue

2

DOI

https://doi.org/10.1103/PhysRevD.85.022001

First Department

Physics

Recommended Citation

Abadie, J.; Abbott, B. P.; Abbott, R.; Abbott, T. D.; Abernathy, M.; Accadia, T.; Acernese, F.; Adams, C.; Adhikari, R.; Affeldt, C.; Ajith, P.; Allen, B.; Allen, G. S.; Amador Ceron, E.; Amariutei, D.; Amin, R. S.; Anderson, S. B.; Anderson, W. G.; Arai, K.; Arain, M. A.; Araya, M. C.; Aston, S. M.; Astone, P.; Atkinson, D.; Aufmuth, P.; Aulbert, C.; Aylott, B. E.; Babak, S.; Baker, P.; Ballardin, G.; Ballmer, S.; and Summerscales, Tiffany Z., "All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data" (2012). Faculty Publications. 1638.
https://digitalcommons.andrews.edu/pubs/1638

Acknowledgements

Retrieved January 29, 2021 from https://arxiv.org/pdf/1110.0208.pdf