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Cosmic rays with low energies come in large numbers from solar flares (yellow range).Less common, but higher energy cosmic rays originating from elsewhere in the galaxy are in the blue range.But in reality, these galactic cosmic rays probably come from supernovae quite possibly in a delayed release process as particles bounce back and forth in the persisting magnetic field of a supernova remnant, before being catapulted out into the wider galaxy.And then there are extragalactic cosmic rays, which are of the Oh-My-God variety, with energy levels exceeding 10 e V which are more formally titled ultra-high-energy cosmic rays.Interpret financial ratios for companies, efficiency ratios, leverage ratios and issues with financial statement analysis.
They propose that extragalactic cosmic rays are spun up in supermassive black hole accretion disks, which are the basis of active galactic nuclei.
In reality, there are limits to just how far away an ultra-high-energy particle can originate from since, if they dont collide with anything else, they will eventually come up against the Greisen Zatsepin Kuzmin (GZK) limit.
This represents the likelihood of a fast moving particle eventually colliding with a cosmic microwave background photon, losing momentum energy and velocity in the process.
Particles from an active supermassive black hole accretion disk in another galaxy are being delivered to our doorstep.
Explore further: On the Scent of a Pre-Historic Particle Accelerator?
The least common but most energetic extragalactic cosmic rays are in the purple range.