All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data

B.P. Abbott, R. Abbott, R. Adhikari, P. Ajith, B. Allen, G. Allen, R.S. Amin, S.B. Anderson, N.A. Lockerbie, LIGO Sci Collaboration

Research output: Contribution to journalArticle

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Abstract

We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5×10-9-0  Hz s-1. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10-24 are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10-6, the search is sensitive to distances as great as 500 pc.
LanguageEnglish
Article number111102
Number of pages6
JournalPhysical Review Letters
Volume102
Issue number11
DOIs
Publication statusPublished - 20 Mar 2009

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LIGO (observatory)
gravitational waves
neutron stars
sky
ellipticity
confidence
frequency ranges
sensitivity
detectors
radiation

Keywords

  • all-sky ligo
  • periodic gravitational waves

Cite this

Abbott, B. P., Abbott, R., Adhikari, R., Ajith, P., Allen, B., Allen, G., ... LIGO Sci Collaboration (2009). All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. Physical Review Letters, 102(11), [111102 ]. https://doi.org/10.1103/PhysRevLett.102.111102
Abbott, B.P. ; Abbott, R. ; Adhikari, R. ; Ajith, P. ; Allen, B. ; Allen, G. ; Amin, R.S. ; Anderson, S.B. ; Lockerbie, N.A. ; LIGO Sci Collaboration. / All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. In: Physical Review Letters. 2009 ; Vol. 102, No. 11.
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abstract = "We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5×10-9-0  Hz s-1. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95{\%} confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10-24 are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10-6, the search is sensitive to distances as great as 500 pc.",
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Abbott, BP, Abbott, R, Adhikari, R, Ajith, P, Allen, B, Allen, G, Amin, RS, Anderson, SB, Lockerbie, NA & LIGO Sci Collaboration 2009, 'All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data' Physical Review Letters, vol. 102, no. 11, 111102 . https://doi.org/10.1103/PhysRevLett.102.111102

All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data. / Abbott, B.P.; Abbott, R.; Adhikari, R.; Ajith, P.; Allen, B.; Allen, G.; Amin, R.S.; Anderson, S.B.; Lockerbie, N.A.; LIGO Sci Collaboration.

In: Physical Review Letters, Vol. 102, No. 11, 111102 , 20.03.2009.

Research output: Contribution to journalArticle

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T1 - All-sky LIGO search for periodic gravitational waves in the early fifth-science-run data

AU - Abbott, B.P.

AU - Abbott, R.

AU - Adhikari, R.

AU - Ajith, P.

AU - Allen, B.

AU - Allen, G.

AU - Amin, R.S.

AU - Anderson, S.B.

AU - Lockerbie, N.A.

AU - LIGO Sci Collaboration

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AB - We report on an all-sky search with the LIGO detectors for periodic gravitational waves in the frequency range 50-1100 Hz and with the frequency's time derivative in the range -5×10-9-0  Hz s-1. Data from the first eight months of the fifth LIGO science run (S5) have been used in this search, which is based on a semicoherent method (PowerFlux) of summing strain power. Observing no evidence of periodic gravitational radiation, we report 95% confidence-level upper limits on radiation emitted by any unknown isolated rotating neutron stars within the search range. Strain limits below 10-24 are obtained over a 200-Hz band, and the sensitivity improvement over previous searches increases the spatial volume sampled by an average factor of about 100 over the entire search band. For a neutron star with nominal equatorial ellipticity of 10-6, the search is sensitive to distances as great as 500 pc.

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