# Reconstruction of the gravitational wave signal h(t) during the Virgo science runs and independent validation with a photon calibrator

2 APC - Cosmologie
APC (UMR_7164) - AstroParticule et Cosmologie
8 APC-Gravitation - APC - Gravitation
APC (UMR_7164) - AstroParticule et Cosmologie, AEI - Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut )
Abstract : The Virgo detector is a kilometer-scale interferometer for gravitational wave detection located near Pisa (Italy). About 13 months of data were accumulated during four science runs (VSR1, VSR2, VSR3 and VSR4) between May 2007 and September 2011, with increasing sensitivity. In this paper, the method used to reconstruct, in the range 10 Hz-10 kHz, the gravitational wave strain time series $h(t)$ from the detector signals is described. The standard consistency checks of the reconstruction are discussed and used to estimate the systematic uncertainties of the $h(t)$ signal as a function of frequency. Finally, an independent setup, the photon calibrator, is described and used to validate the reconstructed $h(t)$ signal and the associated uncertainties. The uncertainties of the $h(t)$ time series are estimated to be 7.5% in amplitude. The uncertainty of the phase of $h(t)$ is 50 mrad at 10 Hz with a frequency dependence following a delay of 8 $\mu$s at high frequency.
Document type :
Journal articles
Domain :

http://hal.in2p3.fr/in2p3-00935791
Contributor : Sabine Starita <>
Submitted on : Friday, January 24, 2014 - 10:28:10 AM
Last modification on : Saturday, June 19, 2021 - 3:15:18 AM

### Citation

T. Accadia, F. Acernese, M. Agathos, A. Allocca, P. Astone, et al.. Reconstruction of the gravitational wave signal h(t) during the Virgo science runs and independent validation with a photon calibrator. Classical and Quantum Gravity, IOP Publishing, 2014, 31, pp.165013. ⟨10.1088/0264-9381/31/16/165013⟩. ⟨in2p3-00935791⟩

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