van Eldik C (2006)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2006
Book Volume: 439
Pages Range: 695-698
Journal Issue: 7077
DOI: 10.1038/nature04467
The source of Galactic cosmic rays (with energies up to 10 eV) remains unclear, although it is widely believed that they originate in the shock waves of expanding supernova remnants. At present the best way to investigate their acceleration and propagation is by observing the γ-rays produced when cosmic rays interact with interstellar gas . Here we report observations of an extended region of very-high-energy (>10 eV) γ-ray emission correlated spatially with a complex of giant molecular clouds in the central 200 parsecs of the Milky Way. The hardness of the γ-ray spectrum and the conditions in those molecular clouds indicate that the cosmic rays giving rise to the γ-rays are likely to be protons and nuclei rather than electrons. The energy associated with the cosmic rays could have come from a single supernova explosion around 10 years ago. © 2006 Nature Publishing Group.
APA:
van Eldik, C. (2006). Discovery of very-high-energy γ-rays from the Galactic Centre ridge. Nature, 439(7077), 695-698. https://doi.org/10.1038/nature04467
MLA:
van Eldik, Christopher. "Discovery of very-high-energy γ-rays from the Galactic Centre ridge." Nature 439.7077 (2006): 695-698.
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