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The following article is Open access
Environmental noise studies in Virgo
F Acernese6, P Amico10, M Alshourbagy11, S Aoudia7, S Avino6, D Babusci4, G Ballardin2, F Barone6, L Barsotti11, M Barsuglia8, F Beauville1, S Birindelli11, M A Bizouard8, C Boccara9, F Bondu7, L Bosi10, C Bradaschia11, S Braccini11, A Brillet7, V Brisson8, L Brocco12, D Buskulic1, E Calloni6, E Campagna3, F Cavalier8, R Cavalieri2, G Cella11, E Chassande-Mottin7, C Corda11, A-C Clapson8, F Cleva7, J-P Coulon7, E Cuoco2, V Dattilo2, M Davier8, R De Rosa6, L Di Fiore6, A Di Virgilio11, B Dujardin7, A Eleuteri6, D Enard2, I Ferrante11, F Fidecaro11, I Fiori11, R Flaminio1,2, J-D Fournier7, O Francois2, S Frasca12, F Frasconi2,11, A Freise2, L Gammaitoni10, A Gennai11, A Giazotto11, G Giordano4, L Giordano6, R Gouaty1, D Grosjean1, G Guidi3, S Hebri2, H Heitmann7, P Hello8, L Holloway2, S Karkar1, S Kreckelbergh8, P La Penna2, N Letendre1, M Lorenzini3, V Loriette9, M Loupias2, G Losurdo3, J -M Mackowski5, E Majorana12, C N Man7, M Mantovani11, F Marchesoni10, F Marion1, J Marque2, F Martelli3, A Masserot1, M Mazzoni3, L Milano6, C Moins2, J Moreau9, N Morgado5, B Mours1, A Pai12, C Palomba12, F Paoletti2,11, S Pardi6, A Pasqualetti2, R Passaquieti11, D Passuello11, B Perniola3, F Piergiovanni3, L Pinard5, R Poggiani11, M Punturo10, P Puppo12, K Qipiani6, P Rapagnani12, V Reita9, A Remillieux5, F Ricci12, I Ricciardi6, P Ruggi2, G Russo6, S Solimeno6, A Spallicci7, R Stanga3, R Taddei2, M Tonelli11, A Toncelli11, E Tournefier1, F Travasso10, G Vajente11, D Verkindt1, F Vetrano3, A Viceré3, J-Y Vinet7, H Vocca10, M Yvert1 and Z Zhang2
1 Laboratoire d'Annecy-le-Vieux de Physique des Particules, Annecy-le-Vieux, France
2 European Gravitational Observatory (EGO), Cascina (Pi), Italia
3 INFN, Sezione di Firenze/Urbino, Sesto Fiorentino, and/or Università di Firenze, and/or Università di Urbino, Italia
4 INFN, Laboratori Nazionali di Frascati, Frascati (Rm), Italia
5 LMA, Villeurbanne, Lyon, France
6 INFN, sezione di Napoli and/or Università di Napoli ``Federico II'' Complesso Universitario di Monte S.Angelo, and/or Università di Salerno, Fisciano (Sa), Italia
7 Departement Artemis - Observatoire de la Côte d'Azur, BP 42209 06304 Nice, Cedex 4, France
8 Laboratoire de l'Accélérateur Linéaire (LAL), IN2P3/CNRS-University de Paris-Sud, Orsay, France
9 ESPCI, Paris, France
10 INFN, Sezione di Perugia and/or Università di Perugia, Perugia, Italia
11 INFN, Sezione di Pisa and/or Università di Pisa, Pisa, Italia
12 INFN, Sezione di Roma and/or Università ``La Sapienza'', Roma, Italia
The study of the external influences from environmental disturbances is a fundamental issue in interferometric detection of gravitational wave, both in locking and in normal operation. Virgo is continuously monitored by a large number of environmental sensors, ranging from seismometers to microphones to electromagnetic probes, up to a weather station. Using data collected during the engineering runs, we have studied the features of the main external noise sources, and the way they interfere with Virgo operation and expected sensitivity. In this paper we present the preliminary results obtained.