A blind search for a common signal in gravitational wave detectors

2018/01/31 by Hao Liu, James Creswell, Sebastian von Hausegger +2 · 19 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Detection theory #Detector #Gravitational wave #Pulsars and Gravitational Waves Research #Quality (philosophy) #Quantum Chromodynamics and Particle Interactions #Reliability (semiconductor) #SIGNAL (programming language) #Signal processing #astro-ph.IM

paper · pdf · doi:10.1088/1475-7516/2018/02/013

published in Journal of Cosmology and Astroparticle Physics 2018(02), 013 (Institute of Physics) · Accepted for publication in JCAP

arxiv created 2018/01/31 · openalex publication_date 2018/02/07 · arxiv updated 2018/02/21 · openalex created_date 2018/02/23 · openalex updated_date 2026/08/05

Abstract

We propose a blind, template-free method for the extraction of a common signal between the Hanford and Livingston detectors and apply it especially to the GW150914 event. We construct a log-likelihood method that maximizes the cross-correlation between each detector and the common signal and minimizes the cross-correlation between the residuals. The reliability of this method is tested using simulations with an injected common signal. Finally, our method is used to assess the quality of theoretical gravitational wave templates for GW150914.

Citations

• Bayeswave: Bayesian inference for gravitational wave bursts and instrument glitches
• FINDCHIRP: An algorithm for detection of gravitational waves from inspiraling compact binaries
• Observation of Gravitational Waves from a Binary Black Hole Merger
• GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2
• On the time lags of the LIGO signals