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We Finally Have The First-Ever Evidence of Cosmic Superaccelerators in Our Galaxy


6 APRIL 2021
A cosmic gamma ray detected zipping across the Milky Way has broken the record for the most energetic we ve found yet, clocking in at a whopping 957 trillion electronvolts (teraelectronvolts, or TeV).
 
This not only more than doubles the previous record, it brings us close to the range of petaelectronvolts (that s a quadrillion electronvolts) - finally confirming the existence of cosmic superaccelerators that can boost photons to these energies in the Milky Way.
Such a superaccelerator is called a PeVatron, and finding them could help us figure out what is producing the high-energy gamma rays streaking across the galaxy.
This pioneering work opens a new window for the exploration of the extreme Universe, said physicist Jing Huang of the Chinese Academy of Sciences in China. The observational evidence marks an important milestone toward revealing cosmic ray origins, which have puzzled mankind for more than one century. ....

Jing Huang , Masato Takita , University Of Tokyo , Institute Of High Energy Physics , Chinese Academy Of Sciences , Milky Way , Chinese Academy , Crab Nebula , High Energy Physics , Air Shower , Large High Altitude Air Shower Observatory , Cherenkov Telescope Array , Southern Wide Field Gamma Ray Observatory , Physical Review , ஜிங் ஹுவாங் , பல்கலைக்கழகம் ஆஃப் டோக்கியோ , நிறுவனம் ஆஃப் உயர் ஆற்றல் இயற்பியல் , சீன கலைக்கழகம் ஆஃப் அறிவியல் , பால் வழி , சீன கலைக்கழகம் , நண்டு நெபுலா , உயர் ஆற்றல் இயற்பியல் , அேக மழை , பெரியது உயர் உயரம் அேக மழை கண்காணிப்பு , தெற்கு பரந்த புலம் காமா ராய் கண்காணிப்பு , உடல் விமர்சனம் ,

High-energy particle accelerators within our galaxy discovered -- Science & Technology -- Sott.net


Fri, 02 Apr 2021 17:48 UTC
Move over, CERN. Unknown sources in the Milky Way dubbed PeVatrons accelerate protons to energies of a few peta-electronvolts - dozens of times higher than the yield of the Large Hadron Collider.
Now, new data from a high-altitude experiment in Tibet confirm that such very-high-energy cosmic rays are indeed produced in our own galaxy.
© APS; Background (atomic hydrogen distribution): HEASARC / LAMBDA / NASA / GFSC
Ultra high-energy diffuse gamma rays (yellow points) are distributed along the Milky Way Galaxy. The gray shaded area indicates the area outside the detectors field of view. The results paint a much fuller picture of the PeVatron population in the Milky Way, says Pat Harding (Los Alamos National Laboratory), who was not involved in the study. ....

La Palma , Los Alamos , United States , Milky Way , Magallanesy Antaica Chilena , Masato Takita , Kelly Malone Los Alamos National Laboratory , American Physical Society , Kazumasa Kawata University Of Tokyo , Pat Harding Los Alamos National Laboratory , Large Hadron , Pat Harding , Los Alamos National Laboratory , Physical Review Letters , Michigan Tech , Cygnus Cocoon , Kazumasa Kawata , High Energy Physics , Chinese Academy , Large High Altitude Air Shower Observatory , Cherenkov Telescope Array , Southern Wide Field Gamma Ray Observatory , Kelly Malone , லா பால்மா , லாஸ் அலமோஸ் , ஒன்றுபட்டது மாநிலங்களில் ,