Detecting white dwarf binaries in Mock LISA Data Challenge 3

Details Detecting white dwarf binaries in Mock LISA Data Challenge 3 Detecting white dwarf binaries in Mock LISA Data Challenge 3

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cqgra..26t4023b&link_type=abstract

Classical and Quantum Gravity, Volume 26, Issue 20, pp. 204023 (2009).

Physics

1

Scientific paper

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 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 F-statistic.

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