Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory

B. Abbott, C.A. Cantley, LIGO Scientific Collaboration

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

The Laser Interferometer Gravitational-Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new Bayesian 90% upper limit is ΩGW × [H0/(72 km s−1 Mpc−1)]2 < 6.5 × 10-5. This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss the complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.
LanguageEnglish
Pages918-930
Number of pages13
JournalAstrophysical Journal
Volume659
Issue number2 I
DOIs
Publication statusPublished - 20 Apr 2007

Fingerprint

LIGO (observatory)
interferometer
gravitational waves
observatory
laser
interferometers
frequency ranges
sensitivity
complementarity
science

Keywords

  • LIGO
  • gravitational waves
  • interferometers

Cite this

@article{6ee568146766479ba662aaadbda7fff8,
title = "Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory",
abstract = "The Laser Interferometer Gravitational-Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new Bayesian 90{\%} upper limit is ΩGW × [H0/(72 km s−1 Mpc−1)]2 < 6.5 × 10-5. This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss the complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.",
keywords = "LIGO, gravitational waves, interferometers",
author = "B. Abbott and C.A. Cantley and {LIGO Scientific Collaboration}",
year = "2007",
month = "4",
day = "20",
doi = "10.1086/511329",
language = "English",
volume = "659",
pages = "918--930",
journal = "Astrophysical Journal",
issn = "0004-637X",
number = "2 I",

}

Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory. / Abbott, B.; Cantley, C.A.; LIGO Scientific Collaboration.

In: Astrophysical Journal, Vol. 659, No. 2 I, 20.04.2007, p. 918-930.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory

AU - Abbott, B.

AU - Cantley, C.A.

AU - LIGO Scientific Collaboration

PY - 2007/4/20

Y1 - 2007/4/20

N2 - The Laser Interferometer Gravitational-Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new Bayesian 90% upper limit is ΩGW × [H0/(72 km s−1 Mpc−1)]2 < 6.5 × 10-5. This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss the complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.

AB - The Laser Interferometer Gravitational-Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new Bayesian 90% upper limit is ΩGW × [H0/(72 km s−1 Mpc−1)]2 < 6.5 × 10-5. This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss the complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.

KW - LIGO

KW - gravitational waves

KW - interferometers

U2 - 10.1086/511329

DO - 10.1086/511329

M3 - Article

VL - 659

SP - 918

EP - 930

JO - Astrophysical Journal

T2 - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2 I

ER -