The Virgo Newtonian calibration system for the O4 observing run

被引：0
|
作者：
Aubin, F. [1 ]
Dangelser, E. [1 ]
Estevez, D. [1 ]
Masserot, A. [2 ]
Mours, B. [1 ]
Pradier, T. [1 ]
Syx, A. [1 ,2 ]
Van Hove, P. [1 ]
机构：
[1] Univ Strasbourg, IPHC UMR 7178, CNRS, F-67000 Strasbourg, France
[2] Univ Savoie Mt Blanc, CNRS, Lab Annecy Phys Particules, IN2P3, F-74000 Annecy, France
来源：
CLASSICAL AND QUANTUM GRAVITY | 2024年 / 41卷 / 23期
关键词：
gravitational wave; Virgo; calibration; NCal;
D O I：
10.1088/1361-6382/ad869c
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
After initial tests performed during previous observing runs, a Newtonian calibrator (NCal) system was developed and installed on the Virgo gravitational wave detector for the O4 observing run. This system, which is continuously operated, provides the absolute calibration of Virgo for this run. Its 1-sigma uncertainty of 0.17% on the amplitudes of the injected signals is better than that obtained with other calibration techniques like the photon calibrator (PCal). This paper presents this NCal system and details the different sources of uncertainties.
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页数：16
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