Article
Version 1
Preserved in Portico This version is not peer-reviewed
A Fast Data Processing Technique for Continuous Gravitational Wave Searches
Version 1
: Received: 18 October 2021 / Approved: 20 October 2021 / Online: 20 October 2021 (12:31:00 CEST)
A peer-reviewed article of this Preprint also exists.
Tinto, M. A Fast Data Processing Technique for Continuous Gravitational Wave Searches. Universe 2021, 7, 486. Tinto, M. A Fast Data Processing Technique for Continuous Gravitational Wave Searches. Universe 2021, 7, 486.
Abstract
This article discusses the potential advantages of a data processing technique for continuous gravitational wave signals searches in the data measured by ground-based gravitational wave interferometers. Its main advantage over other techniques is that it does not need to search over the signal’s direction of propagation. Although it is a “ coherent method” (i.e. it coherently processes year-long data), it is applied to a data set obtained by multiplying the original time-series with a (half-year) time-shifted copy of it. As a result, the phase modulation due to the interferometer motion around the Sun is automatically canceled in the signal of the synthesized time-series. Although the resulting signal-to-noise ratio is not as high as that of a coherent search, it equals that of current hierarchical methods. In addition, since the signal search is performed over a parameters space of smaller dimensionality, the associated false-alarm probability should be smaller than those characterizing hierarchical methods and result in an improved likelihood of detection.
Keywords
Gravitational waves; Interferometers; Data Analysis; Continuous gravitational wave signals
Subject
Physical Sciences, Astronomy and Astrophysics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment