Coherent search of continuous gravitational wave signals: extension of the 5-vectors method to a network of detectors

Details Coherent search of continuous gravitational wave signals: extension of the 5-vectors method to a network of detectors Coherent search of continuous gravitational wave signals: extension of the 5-vectors method to a network of detectors

2012-03-30

arxiv.org/abs/1203.6733v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

9 pages, 2 figures. Journal of Physics: Conference Series, in press

Scientific paper

We describe the extension to multiple datasets of a coherent method for the search of continuous gravitational wave signals, based on the computation of 5-vectors. In particular, we show how to coherently combine different datasets belonging to the same detector or to different detectors. In the latter case the coherent combination is the way to have the maximum increase in signal-to-noise ratio. If the datasets belong to the same detector the advantage comes mainly from the properties of a quantity called {\it coherence} which is helpful (in both cases, in fact) in rejecting false candidates. The method has been tested searching for simulated signals injected in Gaussian noise and the results of the simulations are discussed.

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