Published August 15, 2009 | Version Published
Journal Article Open

Einstein@Home search for periodic gravitational waves in early S5 LIGO data

Creators

  • 1. ROR icon Laser Interferometer Gravitational Wave Observatory
  • 2. ROR icon Max Planck Institute for Gravitational Physics
  • 3. ROR icon University of Wisconsin–Milwaukee
  • 4. ROR icon Stanford University
  • 5. ROR icon Louisiana State University
  • 6. ROR icon University of Florida
  • 7. ROR icon University of Birmingham
  • 8. ROR icon Leibniz University Hannover
  • 9. ROR icon Montana State University
  • 10. ROR icon University of Glasgow
  • 11. ROR icon University of Western Australia
  • 12. ROR icon Massachusetts Institute of Technology
  • 13. ROR icon Columbia University
  • 14. ROR icon The University of Texas Rio Grande Valley
  • 15. ROR icon San Jose State University
  • 16. ROR icon Lomonosov Moscow State University
  • 17. ROR icon Washington State University
  • 18. ROR icon University of Oregon
  • 19. ROR icon Syracuse University
  • 20. ROR icon Rutherford Appleton Laboratory
  • 21. ROR icon University of Maryland, College Park
  • 22. ROR icon University of Massachusetts Amherst
  • 23. ROR icon Goddard Space Flight Center
  • 24. ROR icon University of Michigan–Ann Arbor
  • 25. ROR icon University of Sannio
  • 26. ROR icon University of Mississippi
  • 27. ROR icon Charles Sturt University
  • 28. ROR icon California Institute of Technology
  • 29. ROR icon Carleton College
  • 30. ROR icon University of Melbourne
  • 31. ROR icon Cardiff University
  • 32. ROR icon Eötvös Loránd University
  • 33. ROR icon University of Salerno
  • 34. ROR icon University of Sheffield
  • 35. ROR icon Pennsylvania State University
  • 36. ROR icon Inter-University Centre for Astronomy and Astrophysics
  • 37. ROR icon Southern University and Agricultural and Mechanical College
  • 38. ROR icon University of Rochester
  • 39. ROR icon The University of Texas at Austin
  • 40. ROR icon Australian National University
  • 41. ROR icon Embry–Riddle Aeronautical University
  • 42. ROR icon University of Minnesota
  • 43. ROR icon University of Southampton
  • 44. ROR icon Northwestern University
  • 45. ROR icon National Astronomical Observatory of Japan
  • 46. ROR icon Institute of Applied Physics
  • 47. ROR icon University of Strathclyde
  • 48. ROR icon Loyola University New Orleans
  • 49. ROR icon Hobart and William Smith Colleges
  • 50. ROR icon Louisiana Tech University
  • 51. ROR icon Andrews University
  • 52. ROR icon University of the Balearic Islands
  • 53. ROR icon Sonoma State University
  • 54. ROR icon Trinity University
  • 55. ROR icon Rochester Institute of Technology
  • 56. ROR icon Southeastern Louisiana University
  • 57. ROR icon University of California, Berkeley

Abstract

This paper reports on an all-sky search for periodic gravitational waves from sources such as deformed isolated rapidly spinning neutron stars. The analysis uses 840 hours of data from 66 days of the fifth LIGO science run (S5). The data were searched for quasimonochromatic waves with frequencies f in the range from 50 to 1500 Hz, with a linear frequency drift _ƒ (measured at the solar system barycenter) in the range -ƒ/T < ƒ_ < 0:1ƒ/T, for a minimum spin-down age T of 1000 years for signals below 400 Hz and 8000 years above 400 Hz. The main computational work of the search was distributed over approximately 100 000 computers volunteered by the general public. This large computing power allowed the use of a relatively long coherent integration time of 30 hours while searching a large parameter space. This search extends Einstein@Home's previous search in LIGO S4 data to about 3 times better sensitivity. No statistically significant signals were found. In the 125–225 Hz band, more than 90% of sources with dimensionless gravitational-wave strain tensor amplitude greater than 3 X 10^(-24) would have been detected.

Additional Information

© 2009 The American Physical Society. Received 29 May 2009; published 11 August 2009. The authors thank the tens of thousands of volunteers who have supported the Einstein@Home project by donating their computer time and expertise for this analysis. Without their contributions, this work would not have been possible. The authors gratefully acknowledge the support of the United States National Science Foundation for the construction and operation of the LIGO Laboratory and the Science and Technology Facilities Council of the United Kingdom, the Max-Planck-Society, and the State of Niedersachsen/Germany for support of the construction and operation of the GEO600 detector. The authors also gratefully acknowledge the support of the research by these agencies and by the Australian Research Council, the Council of Scientific and Industrial Research of India, the Istituto Nazionale di Fisica Nucleare of Italy, the Spanish Ministerio de Educaciόn y Ciencia, the Conselleria d'Economia, Hisenda i Innovaciό of the Govern de les Illes Balears, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, The National Aeronautics and Space Administration, the Carnegie Trust, the Leverhulme Trust, the David and Lucile Packard Foundation, the Research Corporation, and the Alfred P. Sloan Foundation. This document has been assigned LIGO Laboratory document number LIGO-P0900032-v5.

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Additional details

Identifiers

Eprint ID
16411
Resolver ID
CaltechAUTHORS:20091020-142129445

Funding

NSF
Max-Planck-Society
State of Niedersachsen/Germany
Australian Research Council
Council of Scientific and Industrial Research (India)
Istituto Nazionale di Fisica Nucleare (INFN)
Ministerio de Educaciόn y Ciencia (MEC)
Conselleria d'Economia, Hisenda i Innovaciό of the Govern de les Illes Balears
Royal Society
Scottish Funding Council
Scottish Universities Physics Alliance
NASA
Carnegie Trust
Leverhulme Trust
David and Lucile Packard Foundation
Research Corporation
Alfred P. Sloan Foundation

Dates

Created
2009-10-26
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
TAPIR , LIGO , Physics Department
Other Numbering System Name
LIGO Document
Other Numbering System Identifier
P0900032-v5