Reducing the Virgo site infrastructure noise in preparation of the O4 observing run
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arXiv
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| Auteurs principaux: | , , , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866918418867814400 |
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| author | Fiori, Irene Paoletti, Federico Passaquieti, Roberto Tringali, Maria Concetta Pierini, Lorenzo Bucci, Francesca Lenti, Massimo Longo, Alessandro |
| author_facet | Fiori, Irene Paoletti, Federico Passaquieti, Roberto Tringali, Maria Concetta Pierini, Lorenzo Bucci, Francesca Lenti, Massimo Longo, Alessandro |
| contents | The heating, ventilation and air conditioning systems serving the experimental halls of the Virgo gravitational wave interferometer generate low-frequency noise - namely below 100 Hz - of seismic, acoustic, and electromagnetic origin. Such disturbances have repeatedly affected the interferometer sensitivity throughout its operational history, with particularly notable impacts during the third observing run. In preparation for the fourth run, a comprehensive investigation was carried out to identify the most critical noise sources within this infrastructure and to trace their transmission paths into the experimental areas. This manuscript presents the methodology and results of the noise characterization campaign, together with the design, implementation and assessment of targeted mitigation measures. The technical solutions adopted, along with the operational best practices developed, provide valuable guidance for the design of low-noise environments in future gravitational-wave observatories. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_28960 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Reducing the Virgo site infrastructure noise in preparation of the O4 observing run Fiori, Irene Paoletti, Federico Passaquieti, Roberto Tringali, Maria Concetta Pierini, Lorenzo Bucci, Francesca Lenti, Massimo Longo, Alessandro Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology Instrumentation and Detectors The heating, ventilation and air conditioning systems serving the experimental halls of the Virgo gravitational wave interferometer generate low-frequency noise - namely below 100 Hz - of seismic, acoustic, and electromagnetic origin. Such disturbances have repeatedly affected the interferometer sensitivity throughout its operational history, with particularly notable impacts during the third observing run. In preparation for the fourth run, a comprehensive investigation was carried out to identify the most critical noise sources within this infrastructure and to trace their transmission paths into the experimental areas. This manuscript presents the methodology and results of the noise characterization campaign, together with the design, implementation and assessment of targeted mitigation measures. The technical solutions adopted, along with the operational best practices developed, provide valuable guidance for the design of low-noise environments in future gravitational-wave observatories. |
| title | Reducing the Virgo site infrastructure noise in preparation of the O4 observing run |
| topic | Instrumentation and Methods for Astrophysics General Relativity and Quantum Cosmology Instrumentation and Detectors |
| url | https://arxiv.org/abs/2603.28960 |