Coincidence analysis to search for inspiraling compact binaries

TL;DR

This paper presents a coincidence analysis method for detecting gravitational waves from inspiraling binaries using two detectors, demonstrating improved false event reduction without significant loss of real signals.

Contribution

The paper introduces a new coincidence analysis technique for gravitational wave detection that enhances false event rejection while maintaining detection efficiency.

Findings

Fake event rate is significantly reduced.

Method effectively distinguishes real signals from noise.

Test analysis on real data shows promising results.

Abstract

We discuss a method of coincidence analysis to search for gravitational waves from inspiraling compact binaries using the data of two laser interferometer gravitational wave detectors. We examine the allowed difference of the wave's parameters estimated by each detector to obtain good detection efficiency. We also discuss a method to set an upper limit to the event rate from the results of the coincidence analysis. For the purpose to test above methods, we performed a coincidence analysis by applying these methods to the real data of TAMA300 and LISM detectors taken during 2001. We show that the fake event rate is reduced significantly by the coincidence analysis without losing real events very much. Results of the test analysis are also given.