Grids for efficient all sky search of white dwarf binaries in mock LISA data challenge

We present construction of the 3 and 4 dimensional grids in the parameter space for all sky-search of gravitational wave signals from white dwarf binaries with LISA data. The 3 dimensional grid is for search of frequency and the sky position of the source and the 4 dimensional grid includes the spin...

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Bibliographic Details
Published in:Journal of physics. Conference series 2009-03, Vol.154 (1), p.012045, Article 012045
Main Authors: Blaut, A, Krolak, A, Pietka, M
Format: Article
Language:English
Subjects:
Fast Fourier transformations
Fourier transforms
Gravitational waves
Parameters
Physics
Searching
White dwarf stars
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Summary:We present construction of the 3 and 4 dimensional grids in the parameter space for all sky-search of gravitational wave signals from white dwarf binaries with LISA data. The 3 dimensional grid is for search of frequency and the sky position of the source and the 4 dimensional grid includes the spin down parameter. The grid solves the covering problem in the parameter space with the constraint that nodes of the grid coincide with Fourier frequencies (multiples of the inverse of the observation time).This allows the use of the fast Fourier transform (FFT) in the evaluation of the optimal statistic and greatly speeds up the search.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/154/1/012045