论文信息 - Searching for a Stochastic Background of Gravitational Waves with the Laser Interferometer Gravitational-Wave Observatory

Searching for a Stochastic Background of Gravitational Waves with the Laser Interferometer Gravitational-Wave Observatory

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.

[1] R. B. Saptsov,et al. ∫ Erratum: "On the Relaxation of the Order Parameter in the BCS Model," Pis'ma Zh. Éksp. Teor. Fiz. 83, 414 (2006) (JETP Lett. 83, 355 (2006)) , 2007 .

[2] N. Fotopoulos. Identifying correlated environmental noise in co-located interferometers with application to stochastic gravitational wave analysis , 2006 .

[3] F. Jenet,et al. Upper Bounds on the Low-Frequency Stochastic Gravitational Wave Background from Pulsar Timing Observations: Current Limits and Future Prospects , 2006, astro-ph/0609013.

[4] C. Hogan. Gravitational waves from light cosmic strings: Backgrounds and bursts with large loops , 2006, astro-ph/0605567.

[5] L. Grishchuk,et al. Imprints of relic gravitational waves in cosmic microwave background radiation , 2006, gr-qc/0605100.

[6] Tristan L. Smith,et al. New cosmic microwave background constraint to primordial gravitational waves. , 2006, Physical review letters.

[7] Tristan L. Smith,et al. Deciphering inflation with gravitational waves: Cosmic microwave background polarization vs direct detection with laser interferometers , 2006, astro-ph/0602137.

[8] A. Vilenkin,et al. Scaling of cosmic string loops , 2005, gr-qc/0511159.

[9] U. Cambridge,et al. Fractal properties and small-scale structure of cosmic string networks , 2005, astro-ph/0511792.

[10] V. Mandic,et al. Accessibility of the pre-big-bang models to LIGO , 2005, astro-ph/0510341.

[11] M. M. Casey,et al. Upper limits on a stochastic background of gravitational waves. , 2005, Physical review letters.

[12] T. Damour,et al. Gravitational radiation from cosmic (super)strings: Bursts, stochastic background, and observational windows , 2004, hep-th/0410222.

[13] B. Fields,et al. New BBN limits on physics beyond the standard model from 4He , 2004, astro-ph/0408033.

[14] A. Cooray. Gravitational‐wave background of neutron star–white dwarf binaries , 2004, astro-ph/0406467.

[15] J. Polchinski,et al. Collisions of cosmic F- and D-strings , 2004, hep-th/0405229.

[16] E. al.,et al. Analysis of first LIGO science data for stochastic gravitational waves , 2003, gr-qc/0312088.

[17] T. Abbott,et al. Detector description and performance for the first coincidence observations between LIGO and GEO , 2003, gr-qc/0308043.

[18] Luciano Iess,et al. Stochastic Gravitational Wave Background: Upper Limits in the 10–6 to 10–3 Hz Band , 2003 .

[19] M. Landry,et al. Towards the first search for a stochastic background in LIGO data: applications of signal simulations , 2003 .

[20] Edward J. Wollack,et al. First-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results , 2003, astro-ph/0302207.

[21] A. Nicolis,et al. Gravitational waves from electroweak phase transitions , 2001, gr-qc/0107033.

[22] D. Blair,et al. Simulating a stochastic background of gravitational waves from neutron star formation at cosmological distances , 2001 .

[23] T. Regimbau,et al. Cosmic background of gravitational waves from rotating neutron stars , 2001, astro-ph/0105260.

[24] T. Damour,et al. Gravitational wave bursts from cosmic strings , 2000, Physical review letters.

[25] M. Maggiore. Gravitational wave experiments and early universe cosmology , 1999, gr-qc/9909001.

[26] B. Allen,et al. Detecting a stochastic background of gravitational radiation: Signal processing strategies and sensitivities , 1997, gr-qc/9710117.

[27] M. Turner. Detectability of inflation-produced gravitational waves , 1996, astro-ph/9607066.

[28] A. Buonanno,et al. Spectrum of relic gravitational waves in string cosmology , 1996, gr-qc/9605072.

[29] G. Veneziano,et al. Phenomenological aspects of the pre-big-bang scenario in string cosmology , 1994, hep-th/0207130.

[30] Allen,et al. CBR anisotropy from primordial gravitational waves in inflationary cosmologies. , 1994, Physical review. D, Particles and fields.

[31] G. Veneziano,et al. Pre-big-bang in string cosmology , 1992, hep-th/9211021.

[32] Watkins,et al. Gravitational waves from first-order cosmological phase transitions. , 1992, Physical review letters.

[33] Caldwell,et al. Cosmological constraints on cosmic-string gravitational radiation. , 1992, Physical review. D, Particles and fields.

[34] T. Loredo. From Laplace to Supernova SN 1987A: Bayesian Inference in Astrophysics , 1990 .

[35] E. P. S. Shellard,et al. Cosmic Strings and Other Topological Defects , 1995 .

[36] Michael S. Turner,et al. The early Universe , 1981, Nature.

[37] J. Bendat,et al. Random Data: Analysis and Measurement Procedures , 1987 .