https://doi.org/10.1140/epjp/s13360-023-04834-0
Regular Article
Design and implementation of a seismic Newtonian noise cancellation system for the Virgo gravitational-wave detector
1
Gran Sasso Science Institute (GSSI), 67100, L’Aquila, Italy
2
INFN, Laboratori Nazionali del Gran Sasso, 67100, Assergi, Italy
3
Università di Napoli “Federico II”, 80126, Napoli, Italy
4
INFN, Sezione di Napoli, 80126, Napoli, Italy
5
INFN, Sezione di Genova, via Dodecaneso, 16146, Genova, Italy
6
Nikhef, 1098, Amsterdam, XG, The Netherlands
7
Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478, Warsaw, Poland
8
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716, Warsaw, Poland
9
European Gravitational Observatory (EGO), 56021, Pisa, Cascina, Italy
10
Maastricht University, 6200, Maastricht, MD, The Netherlands
11
CNRS, Laboratoire d’Annecy de Physique des Particules - IN2P3, Université Savoie Mont Blanc, 74000, Annecy, France
12
CNRS, IPHC UMR 7178, Université de Strasbourg, 67000, Strasbourg, France
13
INFN, Sezione di Pisa, 56127, Pisa, Italy
Received:
28
October
2023
Accepted:
23
December
2023
Published online:
13
January
2024
Terrestrial gravity perturbations caused by seismic fields produce the so-called Newtonian noise in gravitational-wave detectors, which is predicted to limit their sensitivity in the upcoming observing runs. In the past, this noise was seen as an infrastructural limitation, i.e., something that cannot be overcome without major investments to improve a detector’s infrastructure. However, it is possible to have at least an indirect estimate of this noise by using the data from a large number of seismometers deployed around a detector’s suspended test masses. The noise estimate can be subtracted from the gravitational-wave data, a process called Newtonian noise cancellation (NNC). In this article, we present the design and implementation of the first NNC system at the Virgo detector as part of its AdV+ upgrade. It uses data from 110 vertical geophones deployed inside the Virgo buildings in optimized array configurations. We use a separate tiltmeter channel to test the pipeline in a proof-of-principle. The system has been running with good performance over months.
© The Author(s) 2024
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