Measurement of the group velocity of light in sea water at the ANTARES site

Adrián-Martínez, S.; Samarai, I. Al; Albert, A.; André, M.; Anghinolfi, M.; Anton, G.; Anvar, S.; Ardid, M.; Jesus, A.C. Assis; Astraatmadja, T.; Aubert, J.J.; Baret, B.; Basa, S.; Bertín, V.; Biagi, S.; Bigi, A.; Bigongiari, C.; Bogazzi, C.; Bou-Cabo, M.; Bouhou, B.; Bouwhuis, M. C.; Brünner, J.; Busto, J.; Camarena, F.; Capone, A.; Cârloganu, C.; Carminati, G.; Carr, J.; Cecchini, S.; Charif, Z.; Charvis, Philippe; Chiarusi, T.; Circella, M.; Costantini, H.; Coyle, P.; Curtil, C.; Bonis, G. De; Decowski, M. P.; Dekeyser, I.; Deschamps, A.; Distefano, C.; Donzaud, C.; Dornic, D.; Dorosti, Q.; Drouhin, D.; Eberl, T.; Emanuele, U.; Enzenhöfer, A.; Ernenwein, J.-P.; Escoffier, S.; Fermani, P.; Ferri, M.; Flaminio, V.; Folger, F.; Fritsch, U.; Fuda, J.-L.; Galatà, S.; Gay, P.; Geyer, K.; Giacomelli, G.; Giordano, V.; Gómez-González, J.; Graf, Κ.; Guillard, G.; Halladjian, G.; Hallewell, G. D.; Haren, Hans van; Hartman, J.; Heijboer, A.; Hello, Y.; Hernández-Rey, J. J.; Herold, B.; Hößl, J.; Hsu, C. C.; Jong, M. de; Kadler, M.; Kalekin, O.; Kappes, A.; Katz, U.; Kavatsyuk, O.; Kooijman, P.; Kopper, C.; Kouchner, A.; Kreykenbohm, I.; Kulikovskiy, V.; Lahmann, R.; Lamare, P.; Larosa, G.; Lattuada, D.; Lefèvre, D.; Lim, G.; Presti, D. Lo; Loehner, H.; Loucatos, S.; Mangano, S.; Marcelin, M.; Margiotta, A.; Martínez-Mora, J. A.; McMillan, J. E.; Meli, A.; Montaruli, T.; Moscoso, L.; Motz, H.; Neff, M.; Nezri, E.; Palioselitis, D.; Păvălaş, G. E.; Payet, K.; Payre, P.; Petrović, J.; Piattelli, P.; Picot-Clémente, N.; Popa, V.; Pradier, T.; Presani, E.; Racca, C.; Reed, C. M.; Riccobene, G.; Richardt, C.; Richter, R.; Rivière, C.; Robert, Aymeric; Roensch, K.; Rostovtsev, A.; Ruiz-Rivas, J.; Rujoiu, M.; Russo, G.; Salesa, F.; Samtleben, D. F. E.; Sapienza, P.; Schöck, F. M.; Schuller, J. P.; Schüßler, F.; Seitz, T.; Shanidze, R.; Simeone, F.; Spies, A.; Spurio, M.; Steijger, J. J. M.; Stolarczyk, Th.; Sánchez-Losa, A.; Taiuti, M.; Tamburini, Christian; Thompson, L. F.; Toscano, S.; Vallage, B.; Elewyck, V. Van; Vannoni, G.; Vecchi, M.; Vernin, P.; Wagner, S. J.; Wijnker, G.; Wilms, J.; Wolf, E. de; Yepes, H.; Zaborov, D.; Zornoza, J.D.; Zúñiga, J.

doi:10.1016/j.astropartphys.2011.12.003

Cited by 6 publications

(6 citation statements)

References 11 publications

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“…They are mainly due to atmospheric μ's, together with a smaller number of ν's. Many results have already been published [25,27,28,29,30,31,32,33,34,35,36,37]. ter event reconstruction and the application of quality cuts [33], only muons reconstructed as upgoing were selected.…”

Section: Search For Cosmic Neutrino Point Sourcesmentioning

confidence: 99%

Hunting for cosmic neutrinos under the deep sea: the ANTARES experiment

Flaminio

2013

Nuclear Physics B - Proceedings Supplements

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Section: Search For Cosmic Neutrino Point Sourcesmentioning

confidence: 99%

Hunting for cosmic neutrinos under the deep sea: the ANTARES experiment

Flaminio

2013

Nuclear Physics B - Proceedings Supplements

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“…Table 2. Measurements of the light attenuation length l att in sea water at ANTARES site including only statistical errors (Aguilar et al 2005;Adri an-Martínez et al 2012b).…”

Section: Datamentioning

confidence: 99%

“…The light attenuation of water depends on its chemical and physical properties. Therefore, various measurements of the water light transmission properties have been made from 1997 to 2010 using an isotropic light source that emits blue light (Aguilar et al 2005;Adri an-Martínez et al 2012b). The light attenuation includes the effect of water absorption of light as well as the impact of scattered photons reaching the detector (Aguilar et al 2005).…”

Section: Time Of Measurementmentioning

confidence: 99%

Studying bioluminescence flashes with the ANTARES deep‐sea neutrino telescope

Reeb,

Hutschenreuter,

Zehetner

et al. 2023

Limnology & Ocean Methods

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We develop a novel technique to exploit the extensive data sets provided by underwater neutrino telescopes to gain information on bioluminescence in the deep sea. The passive nature of the telescopes gives us the unique opportunity to infer information on bioluminescent organisms without actively interfering with them. We propose a statistical method that allows us to reconstruct the light emission of individual organisms, as well as their location and movement. A mathematical model is built to describe the measurement process of underwater neutrino telescopes and the signal generation of the biological organisms. The Metric Gaussian Variational Inference algorithm is used to reconstruct the model parameters using photon counts recorded by photomultiplier tubes. We apply this method to synthetic data sets and data collected by the ANTARES neutrino telescope. The telescope is located 40 km off the French coast and fixed to the sea floor at a depth of 2475 m. The runs with synthetic data reveal that we can model the emitted bioluminescent flashes of the organisms. Furthermore, we find that the spatial resolution of the localization of light sources highly depends on the configuration of the telescope. Precise measurements of the efficiencies of the detectors and the attenuation length of the water are crucial to reconstruct the light emission. Finally, the application to ANTARES data reveals the first localizations of bioluminescent organisms using neutrino telescope data.

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“…ROOT is a free and opensource scientific software toolkit developed at CERN (https://home.cern/, accessed on 6 November 2022) (Conseil Européen pour la Recherche Nucléaire), which is an European research center that operates a particle physics laboratory located near Geneva, Switzerland. This software framework is widely used by experimental collaborations, such as particle physics, astrophysics, and high-energy astronomy experiments, to study the data and their interpretation [40][41][42][43]. Fourier series decomposition of the aforementioned cup anemometer rotation rate along one turn of the rotor (bottom right) [36].…”

Section: Post-processing the Data With Rootmentioning

confidence: 99%

Performance Monitoring of Mast-Mounted Cup Anemometers Multivariate Analysis with ROOT

Mangano

Vega

Martı́nez

et al. 2022

Sensors

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This paper analyzes the field performance of two cup anemometers installed in Zaragoza (Spain). Data acquired over almost three years, from January 2015 to December 2017, were analyzed. The effect of the different variables (wind speed, temperature, harmonics, wind speed variations, etc.) on two cup anemometers was studied. Data analysis was performed with ROOT, an open-source scientific software toolkit developed by CERN (Conseil Européen pour la Recherche Nucléaire) for the study of particle physics. The effects of temperature, wind speed, and wind dispersion (as a first approximation to atmospheric turbulence) on the first and third harmonics of the anemometers’ rotation speed (i.e., the anemometers’ output signature) were studied together with their evolution throughout the measurement period. The results are consistent with previous studies on the influence of velocity, turbulence, and temperature on the anemometer performance. Although more research is needed to assess the effect of the anemometer wear and tear degradation on the harmonic response of the rotor’s angular speed, the results show the impact of a recalibration on the performance of an anemometer by comparing this performance with that of a second anemometer.

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Measurement of the group velocity of light in sea water at the ANTARES site

Cited by 6 publications

References 11 publications

Hunting for cosmic neutrinos under the deep sea: the ANTARES experiment

Hunting for cosmic neutrinos under the deep sea: the ANTARES experiment

Studying bioluminescence flashes with the ANTARES deep‐sea neutrino telescope

Performance Monitoring of Mast-Mounted Cup Anemometers Multivariate Analysis with ROOT

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