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  Search for Continuous Gravitational Waves: Optimal StackSlide method at fixed computing cost

Prix, R., & Shaltev, M. (2012). Search for Continuous Gravitational Waves: Optimal StackSlide method at fixed computing cost. Physical Review D, 85(8): 084010. doi:10.1103/PhysRevD.85.084010.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-3D28-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-3D2B-1
Genre: Journal Article

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 Creators:
Prix, Reinhard1, Author              
Shaltev, Miroslav1, Author              
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: Coherent wide parameter-space searches for continuous gravitational waves are typically limited in sensitivity by their prohibitive computing cost. Therefore semi-coherent methods (such as StackSlide) can often achieve a better sensitivity. We develop an analytical method for finding optimal StackSlide parameters at fixed computing cost under ideal conditions of gapless data with Gaussian stationary noise. This solution separates two regimes: an unbounded regime, where it is always optimal to use all the data, and a bounded regime with a finite optimal observation time. Our analysis of the sensitivity scaling reveals that both the fine- and coarse-grid mismatches contribute equally to the average StackSlide mismatch, an effect that had been overlooked in previous studies. We discuss various practical examples for the application of this optimization framework, illustrating the potential gains in sensitivity compared to previous searches.

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 Dates: 2012-01-2020122012
 Publication Status: Published in print
 Pages: 18 pages, 3 figures, RevTeX4
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1201.4321
DOI: 10.1103/PhysRevD.85.084010
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : Published for the American Physical Society by the American Institute of Physics
Pages: - Volume / Issue: 85 (8) Sequence Number: 084010 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258