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  Lattice template placement for coherent all-sky searches for gravitational-wave pulsars

Wette, K. (2014). Lattice template placement for coherent all-sky searches for gravitational-wave pulsars. Physical Review D, 90: 122010. doi:10.1103/PhysRevD.90.122010.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-2796-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-6D7E-1
Genre: Journal Article

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 Creators:
Wette, Karl1, 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: All-sky, broadband, coherent searches for gravitational-wave pulsars are restricted by limited computational resources. Minimizing the number of templates required to cover the search parameter space, of sky position and frequency evolution, is one important way to reduce the computational cost of a search. We demonstrate a practical algorithm which, for the first time, achieves minimal template placement for an all-sky search, using the reduced supersky parameter-space metric of Wette and Prix (2013). The metric prescribes a constant template density in the signal parameters, which permits that templates be placed at the vertices of a lattice. We demonstrate how to ensure complete coverage of the parameter space, including in particular at its boundaries. The number of templates generated by the algorithm is compared to theoretical estimates, and to previous predictions by Brady et al. (1998). The algorithm may be applied to any search parameter space with a constant template density, which includes semicoherent searches and searches targeting known low-mass X-ray binaries.

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 Dates: 2014-10-252014
 Publication Status: Published in print
 Pages: 16 pages, 14 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1410.6882
DOI: 10.1103/PhysRevD.90.122010
 Degree: -

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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 90 Sequence Number: 122010 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: /journals/resource/111088197762258