Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/47208
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds |
Author: | Abbott, B. Abbott, R. Adhikari, R. Agresti, J. Ajith, P. Allen, B. Amin, R. Anderson, S. Anderson, W. Arain, M. Araya, M. Armandula, H. Ashley, M. Aston, S. Aufmuth, P. Aulbert, C. Babak, S. Ballmer, S. Bantilan, H. Barish, B. et al. |
Citation: | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2007; 76(2):022001-1-022001-17 |
Publisher: | American Physical Soc |
Issue Date: | 2007 |
ISSN: | 1550-7998 1550-2368 |
Statement of Responsibility: | B Abbott...A. Brooks...D. Brown....D. Hosken..J. Hough...P. G. Murray...D. Mudge...G. Mueller...J. Munch...P. Veitch... et al. (LIGO Scientific Collaboration and ALLEGRO Collaboration) |
Abstract: | Data from the LIGO Livingston interferometer and the ALLEGRO resonant-bar detector, taken during LIGO’s fourth science run, were examined for cross correlations indicative of a stochastic gravitational-wave background in the frequency range 850–950 Hz, with most of the sensitivity arising between 905 and 925 Hz. ALLEGRO was operated in three different orientations during the experiment to modulate the relative sign of gravitational-wave and environmental correlations. No statistically significant correlations were seen in any of the orientations, and the results were used to set a Bayesian 90% confidence level upper limit of Ωgw(f)≤1.02, which corresponds to a gravitational-wave strain at 915 Hz of 1.5×10-23 Hz-1/2. In the traditional units of h1002Ωgw(f), this is a limit of 0.53, 2 orders of magnitude better than the previous direct limit at these frequencies. The method was also validated with successful extraction of simulated signals injected in hardware and software. |
Description: | See Also: Publisher's Note: B Abbott et al., Publisher’s Note: First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds [Phys. Rev. D 76, 022001 (2007)], Phys. Rev. D 76, 029905 (2007). Publisher's Note: B. Abbott et al. LIGO Scientific Collaboration, ALLEGRO Collaboration, Publisher’s Note: First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds [Phys. Rev. D 76, 022001 (2007)], Phys. Rev. D 77, 069904 (2008). |
Rights: | ©2007 American Physical Society |
DOI: | 10.1103/PhysRevD.76.022001 |
Published version: | http://dx.doi.org/10.1103/physrevd.76.022001 |
Appears in Collections: | Aurora harvest Chemistry and Physics publications Environment Institute publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_47208.pdf | Published version | 1.27 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.