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Abstract <p>We discuss the fraction of extragalactic cosmic iron nuclei that reach Earth without fragmentation in extragalactic space. It is shown that for particles with energies <i>E</i> = 10<sup>19</sup> eV, this fraction is significant (approximately 10%), even for sources with redshifts as high as 0.2, and not just for nearby sources. Therefore, when analyzing possible sources of iron nuclei, distant sources must be taken into account.</p>

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Iron Nuclei in Extragalactic Cosmic Rays near Earth

  • 期刊论文

  • 发表日期：

    2026年4月1日

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  • A. V. Uryson

摘要

Abstract

We discuss the fraction of extragalactic cosmic iron nuclei that reach Earth without fragmentation in extragalactic space. It is shown that for particles with energies E = 1019 eV, this fraction is significant (approximately 10%), even for sources with redshifts as high as 0.2, and not just for nearby sources. Therefore, when analyzing possible sources of iron nuclei, distant sources must be taken into account.