IceCube Neutrino Observatory
Das IceCube Neutrino Observatory (oder vereinfacht IceCube) ist ein Hochenergie-Neutrino-Observatorium, das Teil der Amundsen-Scott-Südpolstation in der Antarktis ist.
Seit 2010 werden in einem Volumen von 1 km3 Hochenergie-Neutrinos registriert, wenn diese mit Bestandteilen des Eises reagieren. Dies geschieht, indem dabei erzeugte schnelle Elektronen, Myonen oder Tauonen im Eis Tscherenkov-Strahlung hervorrufen, die mit hochempfindlichen optischen Sensoren (Photomultipliern) nachgewiesen wird. Wissenschaftler versprechen sich von IceCube vor allem Erkenntnisse über die Quellen der geladenen kosmischen Strahlung, in denen auch die Neutrinos erzeugt werden.
https://de.wikipedia.org/wiki/IceCubehttps://en.wikipedia.org/wiki/IceCube_N ... bservatoryhttps://www.youtube.com/watch?v=35YUzuhadOsOur galaxy seen through a new lens: neutrinos detected by IceCube
Our Milky Way galaxy is an awe-inspiring feature of the night sky, viewable with the naked eye as a horizon-to-horizon hazy band of stars. Now, for the first time, the IceCube Neutrino Observatory has produced an image of the Milky Way using neutrinos—tiny, ghostlike astronomical messengers. In an article to be published tomorrow, June 30, in the journal Science, the IceCube Collaboration, an international group of over 350 scientists, presents evidence of high-energy neutrino emission from the Milky Way.
https://icecube.wisc.edu/news/press-rel ... y-icecube/---------------------
Tscherenkow-Strahlung (auch Čerenkov- oder – in englischer Transkription – Cherenkov-Strahlung geschrieben)
entsteht durch den Tscherenkow-Effekt und ist elektromagnetische Strahlung, die beim Durchgang geladener Teilchen (z. B. Elektronen) durch ein lichtdurchlässiges Medium entsteht, wenn diese schneller sind als das sich im Medium ausbreitende Licht. Der Effekt zeigt sich als blaues Leuchten. Die Lichterscheinung war bereits von Marie und Pierre Curie beobachtet worden, konnte jedoch nicht erklärt werden.
https://de.wikipedia.org/wiki/Tscherenkow-Strahlunghttps://en.wikipedia.org/wiki/Cherenkov_radiationHow To Go Faster Than Light Speed
https://www.youtube.com/watch?v=akBpQ-A7mCQWhy is there something rather than nothing? Well the answer may be found in the weakest particle in the universe: the neutrino. For over half a century Fermilab has been the premier particle accelerator facility of the United States and we got to visit with Don Lincoln to explore it’s science and its engineering. These days many of the super-powered geniuses of Fermilab are tackling the mysteries of the neutrino. Why? Because this elusive particle may hold powerful secrets: from the unification of the forces of nature to the biggest question of all: why is there something rather than nothing?
https://www.youtube.com/watch?v=zw2TYNY3F8U---------------
Neutrinos: Messengers from a Violent Universe
In this 45-minute presentation Alex Himmel, Wilson Fellow at Fermi National Accelerator Laboratory, explains how neutrinos might provide the answers to many questions that scientists have about the universe. The neutrino is a type of subatomic particle. They are produced in copious quantities by celestial objects -- trillions of neutrinos from the sun will pass through your body while you read this sentence -- but they interact so rarely with other particles that only a handful will strike an atom in your body during your entire life. Yet these benign little particles can tell us about some of the most energetic processes in the universe. In order to detect these elusive particles, scientists build enormous particle detectors deep underground, using tanks full of liquid argon in an old gold mine as well as a cubic kilometer of Antarctic ice. In this talk Himmel works his way from the sun to galactic supernovae to the possible extragalactic sources of the highest-energy neutrinos ever observed. Himmel also answers audience questions from members of the Naperville Astronomical Association.
https://www.youtube.com/watch?v=UgG4V-GuCrA---------------
Neutrino detector
Neutrino-Experiment
Mit Neutrinoexperiment kann jedes physikalische Experiment gemeint sein, bei dem auf direkte oder indirekte Weise Eigenschaften von Neutrinos gemessen werden. Im engeren Sinn bezeichnet „Neutrinoexperiment“ oft ein Neutrinoobservatorium.
https://de.wikipedia.org/wiki/Neutrino-Experimenthttps://en.wikipedia.org/wiki/Neutrino_detectorList of neutrino experiments
Neutrino experiments are scientific studies investigating the properties of neutrinos, which are subatomic particles that are very difficult to detect due to their weak interactions with matter. Neutrino experiments are essential for understanding the fundamental properties of matter and the universe's behaviour at the subatomic level. Here is a non-exhaustive list of neutrino experiments, neutrino detectors, and neutrino telescopes.
https://en.wikipedia.org/wiki/List_of_n ... xperiments----------------------
Extreme 'ghostly' particles detected in our galaxy for the first time
High-energy neutrinos, formed from violent astronomical events, were previously only found in galaxies with very active black holes.
https://www.nationalgeographic.com/prem ... -discovery
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