Thread
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A diffuse glow of high-energy gamma rays hints at the presence of powerful cosmic accelerators, called PeVatrons, within the disk of our Galaxy.

Paper➡️bit.ly/32km2nX
Article➡️bit.ly/3wLzyPf

Img credit: Heasarc/Lambda/NASA/GFSC

#Space #Astrophysics
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Many physicists believe that such #PeVatrons accelerate particles up to at least PeV energies (PeV=10^15 eV).

Possible PeVatrons include #supernova explosions, star-forming regions, & Sgr A* the supermassive black hole at the center of our galaxy.

#Space #Astrophysics
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But despite decades of hunting, only a few PeVatron candidates have been located in the #MilkyWay.

The Tibet ASγ experiment, a #China-#Japan collaboration, has reported new measurements that provide further evidence for galactic #PeVatrons.

➡️bit.ly/3e0ea0h

#Space
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The experiment detected a diffuse emission of gamma rays with ultrahigh energies of 0.1–1 PeV, likely generated by PeV cosmic rays.

The spatial distribution of these gamma rays points at the presence of #PeVatrons within #MilkyWay #Galaxy.

#Space #Astrophysics
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The new result by the Tibet ASγ Collaboration adds another piece to the #PeVatron puzzle that researchers are trying to complete for decades.

#Space
#Astrophysics
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First image: Ultrahigh-energy diffuse gamma rays (yellow points) are distributed along the #MilkyWay.
Background color contour shows atomic hydrogen distribution in galactic coordinates. The gray shaded area indicates what is outside of field of view.

#Space
#Astrophysics

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