Background light in potential sites for the ANTARES undersea neutrino telescope

Amram, P.; Anvar, S.; Aslanides, E.; Aubert, J.J.; Azoulay, R.; Basa, S.; Benhammou, Y.; Bernard, F.; Bertín, V.; Billault, M.; Blanc, P.; Blanc, F.; Bland, R.W.; Blondeau, F; Bottu, N.; Boulesteix, J.; Brooks, B.; Brünner, J.; Calzas, A.; Cârloganu, C.; Carmona, E.; Carr, J.; Carton, P.H.; Cartwright, S. L.; Cases, R.; Cassol, Franca; Compère, Chantal; Cooper, S.; Coustillier, G.; Botton, N. de; Deck, P.; Desages, F.; Destelle, J.J.; Dispau, G.; Drogou, J. F.; Drouhin, F.; Duval, P.Y.; Feinstein, F.; Festy, D.; Fopma, J.; Fuda, J.-L.; Goret, P.; Gösset, L.; Gournay, J.-F; Hernández, Juan José Guardia; Herrouin, G.; Hubaut, F.; Hubbard, John R.; Huss, D.; Jaquet, M.; Jelley, N. A.; Kajfasz, E.; Karolak, M.; Kouchner, A.; Kudryavtsev, V.A.; Lachartre, D.; Lafoux, H.; Lamare, P.; Languillat, J.-C.; Laugier, D.; Laugier, J. P.; Guen, Y. Le; Provost, H. Le; Suu, A. Le van; Lemoine, L.; Liotard, P.L.; Loucatos, S.; Magnier, P.; Macelin, M.; Martin, L.; Massol, A.; Mazeau, B.; Mazure, A.; Mazéas, F.; McMillan, J. E.; Millot, Claude; Mols, P.P.G.; Montanet, F.; Morel, Jean‐Pierre; Moscoso, L.; Navas, S.; Olivetto, C.; Palanque-Delabrouille, N.; Pallarès, Anne; Payre, P.; Perrin, Patrick; Pohl, A. C.; Poinsignon, J.; Potheau, R.; Queinec, Y.; Racca, C.; Raymond, M.; Rolin, Jean-François; Sacquin, Y.; Schuller, J. P.; Schuster, W. J.; Spooner, N. J. C.; Stolarczyk, T.; Tabary, A.; Talby, M.; Tao, C.; Tayalati, Y.; Thompson, L. F.; Triay, R.; Tzvetanov, T.; Valdy, P.; Vernin, P.; Vigeolas, E.; Vignaud, D.; Vilanova, D.; Wark, D.; Zghiche, A.; Zúñiga, J.

doi:10.1016/s0927-6505(99)00118-8

Cited by 70 publications

(29 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At such depths, the contribution of internally produced irradiance has spectra with significant overlap with the residual daylight (Mobley 1994;Reynold and Lutz 2001) and comprises a significant portion of in situ irradiance (Denton 1990Amram et al 2000. At depths below 500 m, the wavelength dependence of light attenuation in the ocean leads to a narrow band irradiance centered on 480 nm (we follow the convention of using wavelengths in the vacuum).…”

Section: Resultsmentioning

confidence: 99%

Diel and lunar cycles of vertical migration extending to below 1000 m in the ocean and the vertical connectivity of depth‐tiered populations

Ochoa

Maske

Sheinbaum

et al. 2013

Limnology & Oceanography

View full text Add to dashboard Cite

We measured diel migration with 11 acoustic Doppler current meter profilers and consistently found diel and lunar cycles of vertical migration from 250 m down to the bathypelagic (. 1000 m). These measurements come from year-long deployments in eight locations within the Gulf of Mexico. Diel vertical migration could be characterized, in depth and time, by a pulse of maximum vertical migration activity (PMV), which has a nearly fix phase relation to sunrise and sunset modulated by the lunar cycle. The vertical velocity of migrating biota is in the same direction as the PMV propagation, but it is significantly slower. This difference in velocity implies that the PMV cannot represent the migration pattern of one single population. The lunar cycle is evident down to 1000 m, where the upward migration delays in phase with the full moon. The extension of the diel and lunar cycles over 1000 m depth together with the difference in vertical migration velocity indicate that the surface irradiance signal is transmitted to bathypelagic depth by synchronized depth-tiered populations. A model in which particulate organics are recycled at different depths, similar to a bucket brigade, is consistent with these observations. This daily vertical connectivity is expected to affect the vertical transport of carbon down to the bathypelagic.

show abstract

Section: Resultsmentioning

confidence: 99%

Diel and lunar cycles of vertical migration extending to below 1000 m in the ocean and the vertical connectivity of depth‐tiered populations

Ochoa

Maske

Sheinbaum

et al. 2013

Limnology & Oceanography

View full text Add to dashboard Cite

show abstract

“…The Cherenkov light produced in water by a muon with an energy in excess of 4 GeV can generate correlated signals in adjacent storeys. Background light, mainly due to 40 K decays and bioluminescent organisms, is also present [9]. Although a single 40 K decay will produce a relatively small number of Cherenkov photons, it can be observed as a coincidence between neighbouring PMTs within a storey if the decay occurs in the vicinity.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the atmospheric muon flux with a 4GeV threshold in the ANTARES neutrino telescope

Aguilar

Samarai

Albert

et al. 2010

Astroparticle Physics

View full text Add to dashboard Cite

A new method for the measurement of the muon flux in the deep-sea ANTARES neutrino telescope and its dependence on the depth is presented. The method is based on the observation of coincidence signals in adjacent storeys of the detector. This yields an energy threshold of about 4 GeV. The main sources of optical background are the decay of 40 K and the bioluminescence in the sea water. The 40 K background is used to calibrate the efficiency of the photo-multiplier tubes.

show abstract

“…This phenomenon can result in variations of the single photon rates. Occasionally, this can produce short bursts (lasting few seconds) with single photon rates up to several orders of magnitude higher than due to 40 K decays [21]. On the contrary, no variability on similar time scales is observed for the genuine coincidence rates.…”

Section: K Decay Rate At the Antares Sitementioning

confidence: 97%

Long-term monitoring of the ANTARES optical module efficiencies using $$^{40}\mathrm{{K}}$$ 40 K decays in sea water

et al. 2018

View full text Add to dashboard Cite

Cherenkov light induced by radioactive decay products is one of the major sources of background light for deep-sea neutrino telescopes such as ANTARES. These decays are at the same time a powerful calibration source. Using data collected by the ANTARES neutrino telescope from mid 2008 to 2017, the time evolution of the photon detection efficiency of optical modules is studied. A modest loss of only 20% in 9 years is observed. The relative time calibration between adjacent modules is derived as well.

show abstract

Background light in potential sites for the ANTARES undersea neutrino telescope

Cited by 70 publications

References 2 publications

Diel and lunar cycles of vertical migration extending to below 1000 m in the ocean and the vertical connectivity of depth‐tiered populations

Diel and lunar cycles of vertical migration extending to below 1000 m in the ocean and the vertical connectivity of depth‐tiered populations

Measurement of the atmospheric muon flux with a 4GeV threshold in the ANTARES neutrino telescope

Long-term monitoring of the ANTARES optical module efficiencies using $$^{40}\mathrm{{K}}$$ 40 K decays in sea water

Contact Info

Product

Resources

About