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arXiv · 1406.0974

Ionisation as indicator for cosmic ray acceleration

Florian Schuppan·Christian Röken·Natalie Fedrau·Julia Becker Tjus
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Abstract

Astrospheres and wind bubbles of massive stars are believed to be sources of cosmic rays with energies $E\lesssim 1\,$TeV. These particles are not directly detectable, but their impact on surrounding matter, in particular ionisation of atomic and molecular hydrogen, can lead to observable signatures. A correlation study of both gamma ray emission, induced by proton-proton interactions of cosmic ray protons with kinetic energies $E_\mathrm{p}\ge 280\,$MeV with ambient hydrogen, and ionisation induced by cosmic ray protons of kinetic energies $E_\mathrm{p}< 280\,$MeV can be performed in order to study potential sources of (sub)TeV cosmic rays.

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Florian Schuppan, Christian Röken, Natalie Fedrau, Julia Becker Tjus. 2014-06-04. Ionisation as indicator for cosmic ray acceleration. https://doi.org/10.5194/ap-1-13-2014

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