In the context of parameter estimation of gravitational waves (GWs), detector noise is assumed to be Gaussian and stationary. In reality, many electric glitches, which are neither Gaussian nor stationary, were observed and reported in publications by the LSC-Virgo collabotation. Proper noise reduction is important in GW data analysis, as these glitches would limit, if not downgrade, the quality of parameter estimation. In this work, we investigate the accuracy of results obtained by Markov Chain Monte Carlo (MCMC) parameter estimation for compact binary inspirals with the LIGO-Virgo network when non-Gaussian, stationary noise is remained in data of each interferometer. Spiky, delta function-like glitches, which are stationary, do not affect correlations between parameters. However, most likely values of chirp mass and distance seem to be shifted by the specific frequencies and amplitudes of glitches.
|Journal of Physics: Conference Series
|Published - 2 Jun 2016
|11th Edoardo Amaldi Conference on Gravitational Waves, AMALDI 2015 - Gwangju, Korea, Republic of
Duration: 21 Jun 2015 → 26 Jun 2015
Bibliographical noteFunding Information:
This work is partially supported by NRF, No.NRF-2013R1A1A2060677 and by collaborative research program through KISTI/GSDC. CK is grateful for support from KASI-Yonsei DRC program of Korea Research Council of Fundamental Science and Technology (DRC-12-2-KASI)
© Published under licence by IOP Publishing Ltd.