Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 739, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2041-8205/739/2/L43
Keywords
acceleration of particles; cosmic rays; radiation mechanisms: non-thermal; radio continuum: general; shock waves; stars: winds, outflows; supernovae: general
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Funding
- Research Department of Plasmas with Complex Interactions (Bochum)
- Lorentz Center, Leiden, The Netherlands
- Swedish Research Council
- Swedish National Space Board
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The rate of ionization by cosmic rays (CRs) in interstellar gas directly associated with gamma-ray-emitting supernova remnants (SNRs) is for the first time calculated to be several orders of magnitude larger than the Galactic average. Analysis of ionization-induced chemistry yields the first quantitative prediction of the astrophysical H-2(+) emission line spectrum, which should be detectable together with H-3(+) lines. The predicted coincident observation of those emission lines and gamma-rays will help prove that SNRs are sources of CRs.
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