http://arxiv.org/abs/1803.11346
The number of astrophysical sources detected by Advanced LIGO and Virgo is expected to increase as the detectors approach their design sensitivity. Gravitational wave detectors are also sensitive to transient noise sources created by the environment and the detector, known as `glitches’. As the rate of astrophysical sources increases, the probability that a signal will occur at the same time as a glitch also increases. This has occurred previously in the gravitational wave binary neutron star merger detection GW170817. In this paper, we examine the effect of glitches on the measurement of signal parameters and Bayes factors used for model selection. We include binary black holes similar to current detections, sine Gaussian bursts, and core-collapse supernovae. We find that the worst effects occur when the signal is directly on top of the glitch, and the signal to noise ratio (SNR) of the glitch is larger than the signal SNR. Glitches can effect the measured parameters of the signals from a greater time offset when there is a mis-match between the signal model and the astrophysical signal in the data.
J. Powell
Mon, 2 Apr 18
18/39
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