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

Understand

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.