Coincidence Probabilities for Networks of Laser Interferometric Detectors Observing Coalescing Compact Binaries

  • Massimo Tinto
Part of the NATO ASI Series book series (ASIC, volume 253)


The threshold averaged coincidence probability and the coincidence probability as a function of the thresholds of two or more laser interferometers, are applied to the case of waves from coalescing compact binaries. These are thought to be the most likely sources of gravitational waves to be detected by broad-band detectors.

We obtain the various coincidence probabilities as functions of the distance to the source relative to the maximum distance a network will be able to look at. After deducing the probability distribution for binaries located inside the observable volume, we calculate the detection efficiency, defined as the averaged value of the coincidence probability over the volume. By assuming the figure of three events per year for neutron-star binaries out to 100 Mpc, we calculate the event rate that a network of interferometers will be able to register over a given observation time.

We find that the currently proposed four detectors in California, Maine, Scotland and Germany, working with light recycling will be able to observe in coincidence 2000 events per year out to 2.1 Gpc.


Gravitational Wave Detection Efficiency Single Antenna Antenna Pattern Polarization Ellipse 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Massimo Tinto
    • 1
  1. 1.Department of Applied Mathematics & AstronomyUniversity CollegeCardiffWales, UK

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