Nuclear physics meets the sources of the ultra-high energy cosmic rays

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00539913" target="_blank" >RIV/68378271:_____/17:00539913 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1038/s41598-017-05120-7" target="_blank" >https://doi.org/10.1038/s41598-017-05120-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-017-05120-7" target="_blank" >10.1038/s41598-017-05120-7</a>

Result language
angličtina
Original language name
Nuclear physics meets the sources of the ultra-high energy cosmic rays
Original language description
The determination of the injection composition of cosmic ray nuclei within astrophysical sources requires sufficiently accurate descriptions of the source physics and the propagation - apart from controlling astrophysical uncertainties. We therefore study the implications of nuclear data and models for cosmic ray astrophysics, which involves the photo-disintegration of nuclei up to iron in astrophysical environments. We demonstrate that the impact of nuclear model uncertainties is potentially larger in environments with non-thermal radiation fields than in the cosmic microwave background. We also study the impact of nuclear models on the nuclear cascade in a gamma-ray burst radiation field, simulated at a level of complexity comparable to the most precise cosmic ray propagation code. We conclude with an isotope chart describing which information is in principle necessary to describe nuclear interactions in cosmic ray sources and propagation.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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