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Astronomy

The cosmic accelerator

The cosmic rays that permeate our Galaxy have been attributed to various sources. The discovery of high-energy γ-rays from a supernova remnant at last provides concrete evidence for one of the proposed theories.

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Figure 1: Seeking a source of cosmic rays.

NASA/CXC/SAO

Figure 2: Getting up to speed.

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Correspondence to Felix Aharonian.

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Aharonian, F. The cosmic accelerator. Nature 416, 797–798 (2002). https://doi.org/10.1038/416797a

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