A method for detecting continuous gravitational wave signals from an ensemble of known pulsars. (4th June 2021)

• Record Type: Journal Article
• Authors: Buono, M; De Rosa, R; D'Onofrio, L; Errico, L; Palomba, C; Piccinni, O J; Sequino, V
• Is Part Of: Classical and quantum gravity. Volume 38:Number 13(2021)
• Publication Date: 2021-06-04
• Subjects: continuous gravitational wave -- targeted search -- ensemble method; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/abf1c0
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: This work describes a method to improve the detection efficiency for continuous gravitational waves by combining information from known pulsars, which emission is too low to be individually detectable. We propose a new ensemble statistic t, which combines statistics from individual pulsars, defined through the five-vector method. Using a collection of band sample data files from the LIGO science run O2, we test the method with software injections in order to study the statistical properties of t . We also study the performance of our method by varying the number of injected signals and their amplitude. We propose and test a possible strategy for the application of the ensemble method to a set of real pulsars.