Investigation of magnetic noise in advanced Virgo. (18th October 2019)

• Record Type: Journal Article
• Authors: Cirone, A; Fiori, I; Paoletti, F; Perez, M M; Rodríguez, A R; Swinkels, B L; Vazquez, A M; Gemme, G; Chincarini, A
• Is Part Of: Classical and quantum gravity. Volume 36:Number 22(2019:Nov.)
• Publication Date: 2019-10-18
• Subjects: magnetic noise -- gravitational waves -- advanced Virgo -- detector characterization -- strain sensitivity; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/ab4974
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: The advanced Virgo (AdV) sensitivity might be influenced by the effects of environmental noise, in particular magnetic noise (MN). In order to show the impact on the gravitational-wave strain signal h(t) and on the AdV sensitivity, we must understand the coupling between the environmental magnetic activity and the strain. The relationship between the environmental noise—measured by a physical environment monitor (PEM)—and h(t) is investigated using injection studies, where an intentional stimulus is introduced and the responses of both PEM sensors and the instrument are analyzed. We also present the most outstanding measurements and results obtained from both the characterization and the mitigation studies of the environmental MN. Results show that MN does not affect AdV sensitivity up to 100 Mpc in BNS range.