Implementation of barycentric resampling for continuous wave searches in gravitational wave data

Details Implementation of barycentric resampling for continuous wave searches in gravitational wave data Implementation of barycentric resampling for continuous wave searches in gravitational wave data

2009-12-21

arxiv.org/abs/0912.4255v2

Phys.Rev.D81:084032,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 3 figures

Scientific paper

10.1103/PhysRevD.81.084032

We describe an efficient implementation of a coherent statistic for continuous gravitational wave searches from neutron stars. The algorithm works by transforming the data taken by a gravitational wave detector from a moving Earth bound frame to one that sits at the Solar System barycenter. Many practical difficulties arise in the implementation of this algorithm, some of which have not been discussed previously. These difficulties include constraints of small computer memory, discreteness of the data, losses due to interpolation and gaps in real data. This implementation is considerably more efficient than previous implementations of these kinds of searches on Laser Interferometer Gravitational Wave (LIGO) detector data.

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