A joint search for gravitational wave bursts with AURIGA and LIGO

Baggio, L. and Cantley, C. A. and Lockerbie, N.A. and Tokmakov, K. V., AURIGA Collaboration, LIGO Scientific Collaboration (2008) A joint search for gravitational wave bursts with AURIGA and LIGO. Classical and Quantum Gravity, 25 (9). 095004. ISSN 1361-6382 (https://doi.org/10.1088/0264-9381/25/9/095004)

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Abstract

The first simultaneous operation of the AURIGA detector* and the LIGO observatory* was an opportunity to explore real data, joint analysis methods between two very different types of gravitational wave detectors: resonant bars and interferometers. This paper describes a coincident gravitational wave burst search, where data from the LIGO interferometers are cross-correlated at the time of AURIGA candidate events to identify coincident transients. The analysis pipeline is tuned with two thresholds, on the signal-to-noise ratio of AURIGA candidate events and on the significance of the cross-correlation test in LIGO. The false alarm rate is estimated by introducing time shifts between data sets and the network detection efficiency is measured by adding simulated gravitational wave signals to the detector output. The simulated waveforms have a significant fraction of power in the narrower AURIGA band. In the absence of a detection, we discuss how to set an upper limit on the rate of gravitational waves and to interpret it according to different source models. Due to the short amount of analyzed data and to the high rate of non-Gaussian transients in the detectors' noise at the time, the relevance of this study is methodological: this was the first joint search for gravitational wave bursts among detectors with such different spectral sensitivity and the first opportunity for the resonant and interferometric communities to unify languages and techniques in the pursuit of their common goal.

ORCID iDs

Baggio, L., Cantley, C. A., Lockerbie, N.A. ORCID logoORCID: https://orcid.org/0000-0002-1678-3260 and Tokmakov, K. V. ORCID logoORCID: https://orcid.org/0000-0002-2808-6593;
  • Item type:Article
    ID code:6174
    Dates:
    Date
    Event
    7 May 2008
    Published
    Notes:L Baggio et al 2008 Class. Quantum Grav. 25 095004. 2008 IOP Publishing Ltd. This is an author-created, un-copyedited version of an article accepted for publication/published in Classical and Quantum Gravity. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/0264-9381/25/9/095004
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Faculty of Engineering
    Depositing user: Miss Darcy Spiller
    Date deposited:02 Jun 2008
    Last modified:11 Nov 2024 08:53
    URI:https://strathprints.strath.ac.uk/id/eprint/6174
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