Computer display of a neutrino from supernova SN 1987a in the Large Magellanic Cloud,recorded by the IMB detector. The supernova,the brightest for almost 400 years,was due to the explosion of supergiant star Sanduleak -69 202. The explosion produced a burst of neutrinos,some 300 trillion of which traversed the IMB detector within a few seconds at 0735 hours Greenwich Mean Time on 23 February,1987; 8 were recorded. The display shows an outline of the detector,a tank of ultrapure water 600m down in a salt mine in Ohio. The circle of yellow crosses is due to a positron,which was produced with a neutron when an antineutrino from the supernova collided with a proton in the water | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / IMB COLLABORATION |
Taille de l’image : | 4766 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |