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  Faster search for long gravitational-wave transients: GPU implementation of the transient F-statistic

Keitel, D., & Ashton, G. (2018). Faster search for long gravitational-wave transients: GPU implementation of the transient F-statistic. Classical and quantum gravity, 35(20): 205003. doi:10.1088/1361-6382/aade34.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-74EA-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0002-EDC7-3
Genre: Journal Article

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 Creators:
Keitel, David1, Author              
Ashton, Gregory2, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
2Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: Astrophysics, Instrumentation and Methods for Astrophysics, astro-ph.IM,General Relativity and Quantum Cosmology, gr-qc
 Abstract: The F-statistic is an established method to search for continuous gravitational waves from spinning neutron stars. Prix et al. (2011) introduced a variant for transient quasi-monochromatic signals. Possible astrophysical scenarios for such transients include glitching pulsars, newborn neutron stars and accreting systems. Here we present a new implementation of the transient F-statistic, using pyCUDA to leverage the power of modern graphics processing units (GPUs). The obtained speedup allows efficient searches over much wider parameter spaces, especially when using more realistic transient signal models including time-varying (e.g. exponentially decaying) amplitudes. Hence, it can enable comprehensive coverage of glitches in known nearby pulsars, improve the follow-up of outliers from continuous-wave searches, and might be an important ingredient for future blind all-sky searches for unknown neutron stars.

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 Dates: 2018-05-152018
 Publication Status: Published in print
 Pages: 13 pages, 3 figures
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 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1805.05652
URI: http://arxiv.org/abs/1805.05652
DOI: 10.1088/1361-6382/aade34
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 35 (20) Sequence Number: 205003 Start / End Page: - Identifier: ISSN: 0264-9381
CoNE: https://pure.mpg.de/cone/journals/resource/954925513480_1