Directional limits on persistent gravitational waves using LIGO S5 science data

J. Abadie, N. A. Lockerbie, K. V. Tokmakov, LIGO Scientific Collaboration, Virgo Collaboration

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2 - 20 x 10(-50) strain(2) Hz(-1) and 5 - 35 x 10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as approximate to 7 - 10(-25) in the most sensitive frequency range near 160 Hz.
LanguageEnglish
Article number271102
Number of pages9
JournalPhysical Review Letters
Volume107
Issue number27
DOIs
Publication statusPublished - 29 Dec 2011

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LIGO (observatory)
gravitational waves
confidence
sky
narrowband
frequency ranges

Keywords

  • LIGO S5
  • gravitational waves
  • stochastic analysis

Cite this

Abadie, J., Lockerbie, N. A., Tokmakov, K. V., LIGO Scientific Collaboration, & Virgo Collaboration (2011). Directional limits on persistent gravitational waves using LIGO S5 science data. Physical Review Letters, 107(27), [271102 ]. https://doi.org/10.1103/PhysRevLett.107.271102
Abadie, J. ; Lockerbie, N. A. ; Tokmakov, K. V. ; LIGO Scientific Collaboration ; Virgo Collaboration. / Directional limits on persistent gravitational waves using LIGO S5 science data. In: Physical Review Letters. 2011 ; Vol. 107, No. 27.
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Abadie, J, Lockerbie, NA, Tokmakov, KV, LIGO Scientific Collaboration & Virgo Collaboration 2011, 'Directional limits on persistent gravitational waves using LIGO S5 science data' Physical Review Letters, vol. 107, no. 27, 271102 . https://doi.org/10.1103/PhysRevLett.107.271102

Directional limits on persistent gravitational waves using LIGO S5 science data. / Abadie, J.; Lockerbie, N. A.; Tokmakov, K. V.; LIGO Scientific Collaboration; Virgo Collaboration.

In: Physical Review Letters, Vol. 107, No. 27, 271102 , 29.12.2011.

Research output: Contribution to journalArticle

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T1 - Directional limits on persistent gravitational waves using LIGO S5 science data

AU - Abadie, J.

AU - Lockerbie, N. A.

AU - Tokmakov, K. V.

AU - LIGO Scientific Collaboration

AU - Virgo Collaboration

N1 - J. Abadie et al. (LIGO Scientific Collaboration, Virgo Collaboration) Phys. Rev. Lett. 107, 271102. © 2011 American Physical Society

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N2 - The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2 - 20 x 10(-50) strain(2) Hz(-1) and 5 - 35 x 10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as approximate to 7 - 10(-25) in the most sensitive frequency range near 160 Hz.

AB - The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2 - 20 x 10(-50) strain(2) Hz(-1) and 5 - 35 x 10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as approximate to 7 - 10(-25) in the most sensitive frequency range near 160 Hz.

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Abadie J, Lockerbie NA, Tokmakov KV, LIGO Scientific Collaboration, Virgo Collaboration. Directional limits on persistent gravitational waves using LIGO S5 science data. Physical Review Letters. 2011 Dec 29;107(27). 271102 . https://doi.org/10.1103/PhysRevLett.107.271102