Implementation of barycentric resampling for continuous wave searches in gravitational wave data
- Department of Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125 (United States)
- Department of Physics, University of Wisconsin--Milwaukee, P.O. Box 413, Milwaukee, Wisconsin 53201 (United States)
We describe an efficient implementation of a coherent statistic for searches of continuous gravitational wave 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. The speed-up factors range from 10, when applied to Einstein-Home, to about 2000 for targeted searches which integrate over months of data.
- OSTI ID:
- 21431053
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 81, Issue 8; Other Information: DOI: 10.1103/PhysRevD.81.084032; (c) 2010 The American Physical Society; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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COSMOLOGY AND ASTRONOMY
ALGORITHMS
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
INTERFEROMETERS
INTERPOLATION
LASER RADIATION
NEUTRON STARS
SOLAR SYSTEM
VELOCITY
ELECTROMAGNETIC RADIATION
MATHEMATICAL LOGIC
MATHEMATICAL SOLUTIONS
MEASURING INSTRUMENTS
NUMERICAL SOLUTION
RADIATION DETECTORS
RADIATIONS
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