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          Institute: MPI für Gravitationsphysik     Collection: Astrophysical Relativity     Display Documents

ID: 442639.0, MPI für Gravitationsphysik / Astrophysical Relativity
Detecting white dwarf binaries in Mock LISA Data Challenge 3
Authors:Blaut, A.; Krolak, A.; Babak, S.
Date of Publication (YYYY-MM-DD):2009-10-21
Title of Journal:Classical and Quantum Gravity
Issue / Number:20
Sequence Number of Article:204023
Review Status:not specified
Audience:Not Specified
Abstract / Description:We present a strategy for detecting gravitational wave signals from the Galactic white dwarf binaries in the Mock LISA Data Challenge 3 (MLDC3) and estimate their parameters. Our method is based on the matched filtering in the form of the {\mathcal F} -statistic. We perform the search on three-dimensional space (sky coordinate and frequency of gravitational wave) below 3 mHz and include the fourth parameter (frequency derivative) at high frequencies. A template bank is used to search for the strongest signal in the data, then we remove it and repeat the search until we do not have signals in the data above a preselected threshold. For the template bank, we construct an optimal grid that realizes the best lattice covering with a constraint such that the nodes of the grid coincide with the Fourier frequencies. This enables the use of the fast Fourier transform algorithm to calculate the {\mathcal F} -statistic.
External Publication Status:published
Document Type:Article
Communicated by:Bernhard F. Schutz
Affiliations:MPI für Gravitationsphysik/Astrophysical Relativity
Identifiers:ISI:000270514600024 [ID No:1]
ISSN:0264-9381 [ID No:2]
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