A burst search for gravitational waves from binary black holes

TL;DR

This paper introduces a new gravitational wave search method for binary black hole mergers, based on un-modeled burst algorithms with constraints for targeted detection, enhancing sensitivity across various parameters.

Contribution

It presents a novel constrained burst search algorithm for CBC signals, complementing traditional matched filter methods and applicable to a wide range of waveform morphologies.

Findings

Algorithm shows sensitivity to simulated CBC waveforms.

Preliminary studies on test data demonstrate promising detection capabilities.

Framework is extendable to the full LIGO-Virgo data set.

Abstract

Compact binary coalescence (CBC) is one of the most promising sources of gravitational waves. These sources are usually searched for with matched filters which require accurate calculation of the GW waveforms and generation of large template banks. We present a complementary search technique based on algorithms used in un-modeled searches. Initially designed for detection of un-modeled bursts, which can span a very large set of waveform morphologies, the search algorithm presented here is constrained for targeted detection of the smaller subset of CBC signals. The constraint is based on the assumption of elliptical polarisation for signals received at the detector. We expect that the algorithm is sensitive to CBC signals in a wide range of masses, mass ratios, and spin parameters. In preparation for the analysis of data from the fifth LIGO-Virgo science run (S5), we performed preliminary studies of the algorithm on test data. We present the sensitivity of the search to different types of simulated CBC waveforms. Also, we discuss how to extend the results of the test run into a search over all of the current LIGO-Virgo data set.