Preprint Article Version 3 Preserved in Portico This version is not peer-reviewed

The Stochastic Gravitational-Wave Background Exists Permanently and Has Time-Domain Asymmetry

Version 1 : Received: 24 February 2022 / Approved: 24 February 2022 / Online: 24 February 2022 (10:13:33 CET)
Version 2 : Received: 1 May 2022 / Approved: 4 May 2022 / Online: 4 May 2022 (12:31:43 CEST)
Version 3 : Received: 18 July 2022 / Approved: 19 July 2022 / Online: 19 July 2022 (10:33:36 CEST)

How to cite: Kramarenko, A.; Kramarenko, A. The Stochastic Gravitational-Wave Background Exists Permanently and Has Time-Domain Asymmetry. Preprints 2022, 2022020311. https://doi.org/10.20944/preprints202202.0311.v3 Kramarenko, A.; Kramarenko, A. The Stochastic Gravitational-Wave Background Exists Permanently and Has Time-Domain Asymmetry. Preprints 2022, 2022020311. https://doi.org/10.20944/preprints202202.0311.v3

Abstract

Analyzing the records of Advanced LIGO and Virgo gravitational observatories, we found a specific time-domain asymmetry inherent only to the signals of their gravitational detectors. Experiments with different periodic signals, Gaussian and non-Gaussian noises, made it possible to conclude that the noise of gravitational detectors is an unusual mixture of signals. We also developed a specialized Pearson correlation analyzer to recognize the gravitational-wave events. It turned out that the LIGO detectors’ output signals include a significant (– 6 dB) component, which has the properties of records of reliably recognized gravitational waves. It allows us to argue that the gravitational background noise is largely due to the processes of merging astronomical objects. Since the specific signal is registered by the detectors continuously, we can consider the sub-kilohertz band gravitational oscillations field as detected. Our analysis method also allows us to estimate the contribution of the gravitational background component to the total signal energy. With its help, it will be possible not only to provide the radio-frequency estimation of the magnitude of gravitational disturbances but also, possibly, to construct a map of the gravitational noise of the sky.

Supplementary and Associated Material

https://drive.google.com/drive/folders/1WO9-yMLjXBvehU_EsvVQmKcMjsOkn9g2?usp=sharing: This is a link to the folder containing all the files mentioned in our article

Keywords

Gravitational background; Gravitational waves; correlation analysis; digital filters

Subject

Physical Sciences, Astronomy and Astrophysics

Comments (1)

Comment 1
Received: 19 July 2022
Commenter: Andrey Kramarenko
Commenter's Conflict of Interests: Author
Comment: We have slightly revised the text of the article for clarity, added an illustration, and attached a graphical abstract file
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