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https://losc.ligo.org/s/events/GW150914/GW150914_tutorial.html

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• TITLE: Experimental Confirmation of the Doubts about Authenticity of Event GW150914

  AUTHORS: Alexander V. Lukanenkov

  KEYWORDS: Gravitational Waves, Optimal Detector, Linear Frequency Modulated Signal, Chirp Signal, Band Pass Filtering, Matched Filter, Optimal Signal Processing, Causal Filter

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.5 No.2, February 28, 2017

  ABSTRACT: It was produced processing of the LIGO 14.09.2015 registration data. It was established that the chirp signals (signals of merger of black holes) are absent in the data. This is proved by using a coherent filtering and also two-stage causal filtering. Soliton-like signals such as wavelet “Mexican hat” are found by filtering based on the Butterworth filter. These signals are different in polarity, and their spectra are quite different. Doubts about the authenticity of the detection of chirp signals, which announced on February 11, 2016, are justified by the results the conducted analysis.