Messengers of the Universe-Cosmic Rays Exploring Supermassive Black Holes
Cosmic rays were discovered over one hundred years ago but there are still unsolved problems. One of the hot problems is the origin of cosmic rays of the highest energies. Sources are still unclear and it is neither clear how particles gain ultra-high energies. Possible sources of cosmic rays at the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Galaxies |
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| Online Access: | https://www.mdpi.com/2075-4434/9/1/2 |