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arXiv · 1909.00670

The Origins of the Highest Energy Particles in Nature: where we are and where we go next

A A Watson
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Abstract

In his Nobel Prize lecture Victor Hess urged that different instruments, working together, should be used to solve the problem of the origin of cosmic rays. I review some of the key developments that have opened up the new fields of direct and indirect multi-messenger astronomy and that are guiding us to the solution of this riddle. I then discuss, very briefly, some of the new instruments that are shortly to come on line and give examples to show the long lead-times from conception to implementation that occur in this field. I conclude with some remarks about very ambitious future projects. The paper is not intended as a review: rather it is an attempt to set down issues discussed in the Hess Memorial Public Lecture given at the 2019 ICRC in Madison, Wisconsin and accessible at www.icrc2019.org.

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A A Watson. 2019-09-02. The Origins of the Highest Energy Particles in Nature: where we are and where we go next. https://arxiv.org/abs/1909.00670

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