Information-theoretic approach to the gravitational-wave burst detection problem
The observational era of gravitational-wave astronomy began in the fall of 2015 with the detection of GW150914. One potential type of detectable gravitational wave is short-duration gravitational-wave bursts, whose waveforms can be difficult to predict. We present the framework for a detection algor...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2017
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| Online Access: | http://hdl.handle.net/1721.1/110248 https://orcid.org/0000-0002-5163-683X https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-8196-9267 |
| _version_ | 1811074156127584256 |
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| author | Katsavounidis, Erik Robinet, Florent Lynch, Ryan Christopher Vitale, Salvatore Essick, Reed Clasey |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Katsavounidis, Erik Robinet, Florent Lynch, Ryan Christopher Vitale, Salvatore Essick, Reed Clasey |
| author_sort | Katsavounidis, Erik |
| collection | MIT |
| description | The observational era of gravitational-wave astronomy began in the fall of 2015 with the detection of GW150914. One potential type of detectable gravitational wave is short-duration gravitational-wave bursts, whose waveforms can be difficult to predict. We present the framework for a detection algorithm for such burst events—oLIB—that can be used in low latency to identify gravitational-wave transients. This algorithm consists of (1) an excess-power event generator based on the Q transform—Omicron—, (2) coincidence of these events across a detector network, and (3) an analysis of the coincident events using a Markov chain Monte Carlo Bayesian evidence calculator—LALInferenceBurst. These steps compress the full data streams into a set of Bayes factors for each event. Through this process, we use elements from information theory to minimize the amount of information regarding the signal-versus-noise hypothesis that is lost. We optimally extract this information using a likelihood-ratio test to estimate a detection significance for each event. Using representative archival LIGO data across different burst waveform morphologies, we show that the algorithm can detect gravitational-wave burst events of astrophysical strength in realistic instrumental noise. We also demonstrate that the combination of Bayes factors by means of a likelihood-ratio test can improve the detection efficiency of a gravitational-wave burst search. Finally, we show that oLIB’s performance is robust against the choice of gravitational-wave populations used to model the likelihood-ratio test likelihoods. |
| first_indexed | 2024-09-23T09:44:19Z |
| format | Article |
| id | mit-1721.1/110248 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:44:19Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1102482022-09-26T13:28:21Z Information-theoretic approach to the gravitational-wave burst detection problem Katsavounidis, Erik Robinet, Florent Lynch, Ryan Christopher Vitale, Salvatore Essick, Reed Clasey Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Lynch, Ryan Christopher Vitale, Salvatore Essick, Reed Clasey The observational era of gravitational-wave astronomy began in the fall of 2015 with the detection of GW150914. One potential type of detectable gravitational wave is short-duration gravitational-wave bursts, whose waveforms can be difficult to predict. We present the framework for a detection algorithm for such burst events—oLIB—that can be used in low latency to identify gravitational-wave transients. This algorithm consists of (1) an excess-power event generator based on the Q transform—Omicron—, (2) coincidence of these events across a detector network, and (3) an analysis of the coincident events using a Markov chain Monte Carlo Bayesian evidence calculator—LALInferenceBurst. These steps compress the full data streams into a set of Bayes factors for each event. Through this process, we use elements from information theory to minimize the amount of information regarding the signal-versus-noise hypothesis that is lost. We optimally extract this information using a likelihood-ratio test to estimate a detection significance for each event. Using representative archival LIGO data across different burst waveform morphologies, we show that the algorithm can detect gravitational-wave burst events of astrophysical strength in realistic instrumental noise. We also demonstrate that the combination of Bayes factors by means of a likelihood-ratio test can improve the detection efficiency of a gravitational-wave burst search. Finally, we show that oLIB’s performance is robust against the choice of gravitational-wave populations used to model the likelihood-ratio test likelihoods. National Science Foundation (U.S.) Laser Interferometer Gravitational Wave Observatory Centre national de la recherche scientifique (France) Laser Interferometer Gravitational Wave Observatory (agreement PHY-0757058) 2017-06-26T13:08:14Z 2017-06-26T13:08:14Z 2017-05 2017-02 2017-06-02T16:41:18Z Article http://purl.org/eprint/type/JournalArticle 2470-0010 2470-0029 http://hdl.handle.net/1721.1/110248 Lynch, Ryan, Salvatore Vitale, Reed Essick, Erik Katsavounidis, and Florent Robinet. “Information-Theoretic Approach to the Gravitational-Wave Burst Detection Problem.” Physical Review D 95, no. 10 (May 30, 2017). https://orcid.org/0000-0002-5163-683X https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-8196-9267 en http://dx.doi.org/10.1103/PhysRevD.95.104046 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Katsavounidis, Erik Robinet, Florent Lynch, Ryan Christopher Vitale, Salvatore Essick, Reed Clasey Information-theoretic approach to the gravitational-wave burst detection problem |
| title | Information-theoretic approach to the gravitational-wave burst detection problem |
| title_full | Information-theoretic approach to the gravitational-wave burst detection problem |
| title_fullStr | Information-theoretic approach to the gravitational-wave burst detection problem |
| title_full_unstemmed | Information-theoretic approach to the gravitational-wave burst detection problem |
| title_short | Information-theoretic approach to the gravitational-wave burst detection problem |
| title_sort | information theoretic approach to the gravitational wave burst detection problem |
| url | http://hdl.handle.net/1721.1/110248 https://orcid.org/0000-0002-5163-683X https://orcid.org/0000-0003-2700-0767 https://orcid.org/0000-0001-8196-9267 |
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