Method for environmental noise estimation via injection tests for ground-based gravitational wave detectors

Abstract

Environmental noise is one of the critical issues for the observation of gravitational waves, but is difficult to predict in advance. Therefore, to evaluate the adverse impact of environmental noise on the detector sensitivity, understanding the detector response to the environmental noise in actual setup is crucial, for both the observation and future upgrades. In this paper, we introduce and verify a new method of the environmental noise injection test based on the post-observation commissioning of KAGRA. This new method (response function model) includes the frequency conversion and nonlinearity of power, which are the effects that are not considered in the current model (coupling function model) used in LIGO and Virgo. We also confirmed the validity of our method by applying it to an environmental noise-enriched dataset and successfully reproducing them.

References in corpus (4)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
• Environmental Noise in Advanced LIGO Detectors
• Application of the independent component analysis to the iKAGRA data

Cited by in corpus (5)

• Performance of the KAGRA detector during the first joint observation with GEO 600 (O3GK)
• The Virgo O3 run and the impact of the environment
• The KAGRA underground environment and lessons for the Einstein Telescope
• Realistic observing scenarios for the next decade of early warning detection of binary neutron stars
• Nonlinear Independent Component Analysis Scheme and its application to gravitational wave data analysis