Question

Where do ultrahigh-energy particles come from?​

Answer 1

Answer:

The sources of such high energy particals has been a mystery for many years. recent result from the pierre auger observatory show that ultra high energy cosmic ray arrival directions appear to be correlated with extragalactic supermassive black holes at the center of nearby galaxies called active Galactic nuclei

Utrahigh-energy particals come from (AGN)

Answer 2

Answer:

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