Virgo calibration and reconstruction of the gravitational wave strain during VSR1
Abstract
Virgo is a kilometer-length interferometer for gravitational waves detection located near Pisa. Its first science run, VSR1, occured from May to October 2007. The aims of the calibration are to measure the detector sensitivity and to reconstruct the time series of the gravitational wave strain h(t). The absolute length calibration is based on an original non-linear reconstruction of the differential arm length variations in free swinging Michelson configurations. It uses the laser wavelength as length standard. This method is used to calibrate the frequency dependent response of the Virgo mirror actuators and derive the detector in-loop response and sensitivity within ~5%. The principle of the strain reconstruction is highlighted and the h(t) systematic errors are estimated. A photon calibrator is used to check the sign of h(t). The reconstructed h(t) during VSR1 is valid from 10 Hz up to 10 kHz with systematic errors estimated to 6% in amplitude. The phase error is estimated to be 70 mrad below 1.9 kHz and 6 micro-seconds above.
Keywords
Cite
@article{arxiv.1002.2329,
title = {Virgo calibration and reconstruction of the gravitational wave strain during VSR1},
author = {The Virgo collaboration and T. Accadia and F. Acernese and F. Antonucci and S. Aoudia and K. G. Arun and P. Astone and G. Ballardin and F. Barone and M. Barsuglia and Th. S. Bauer and M. G. Beker and A. Belletoile and S. Bigotta and S. Birindelli and M. Bitossi and M. A. Bizouard and M. Blom and C. Boccara and F. Bondu and L. Bonelli and R. Bonnand and L. Bosi and S. Braccini and C. Bradaschia and A. Brillet and V. Brisson and R. Budzynski and T. Bulik and H. J. Bulten and D. Buskulic and C. Buy and G. Cagnoli and E. Calloni and E. Campagna and B. Canuel and F. Carbognani and F. Cavalier and R. Cavalieri and G. Cella and E. Cesarini and E. Chassande-Mottin and A. Chincarini and F. Cleva and E. Coccia and C. N. Colacino and J. Colas and A. Colla and M. Colombini and A. Corsi and J. -P. Coulon and E. Cuoco and S. D'Antonio and A. Dari and V. Dattilo and M. Davier and R. Day and R. De Rosa and M. del Prete and L. Di Fiore and A. Di Lieto and M. Di Paolo Emilio and A. Di Virgilio and A. Dietz and M. Drago and V. Fafone and I. Ferrante and F. Fidecaro and I. Fiori and R. Flaminio and J. -D. Fournier and J. Franc and S. Frasca and F. Frasconi and A. Freise and M. Galimberti and L. Gammaitoni and F. Garufi and G. Gemme and E. Genin and A. Gennai and A. Giazotto and R. Gouaty and M. Granata and C. Greverie and G. M. Guidi and H. Heitmann and P. Hello and S. Hild and D. Huet and P. Jaranowski and I. Kowalska and A. Krolak and N. Leroy and N. Letendre and T. G. F. Li and M. Lorenzini and V. Loriette and G. Losurdo and J. M. Mackowski and E. Majorana and I. Maksimovic and N. Man and M. Mantovani and F. Marchesoni and F. Marion and J. Marque and F. Martelli and A. Masserot and C. Michel and L. Milano and Y. Minenkov and M. Mohan and J. Moreau and N. Morgado and A. Morgia and S. Mosca and V. Moscatelli and B. Mours and I. Neri and F. Nocera and G. Pagliaroli and L. Palladino and C. Palomba and F. Paoletti and S. Pardi and M. Parisi and A. Pasqualetti and R. Passaquieti and D. Passuello and G. Persichetti and M. Pichot and F. Piergiovanni and M. Pietka and L. Pinard and R. Poggiani and M. Prato and G. A. Prodi and M. Punturo and P. Puppo and O. Rabaste and D. S. Rabeling and P. Rapagnani and V. Re and T. Regimbau and F. Ricci and F. Robinet and A. Rocchi and L. Rolland and R. Romano and D. Rosinska and P. Ruggi and B. Sassolas and D. Sentenac and R. Sturani and B. Swinkels and A. Toncelli and M. Tonelli and O. Torre and E. Tournefier and F. Travasso and J. Trummer and G. Vajente and J. F. J. van den Brand and S. van der Putten and M. Vavoulidis and G. Vedovato and D. Verkindt and F. Vetrano and A. Vicere and J. -Y. Vinet and H. Vocca and M. Was and M. Yvert},
journal= {arXiv preprint arXiv:1002.2329},
year = {2014}
}
Comments
8 pages, 8 figures, proceedings of Amaldi 8 conference, to be published in Journal of Physics Conference Series (JPCS). Second release: correct typos