The need for a local source of ultrahigh-energy cosmic-ray nuclei

Taylor, Andrew M.; Ahlers, Markus; Aharonian, Felix A.

doi:10.1103/PhysRevD.84.105007

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

The need for a local source of ultrahigh-energy cosmic-ray nuclei

MPS-Authors

/persons/resource/persons30244

Aharonian, Felix A.
Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society;
Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin 2, IRELAND;

External Resource

http://prd.aps.org/abstract/PRD/v84/i10/e105007
(出版社版)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

1107.2055
(プレプリント), 512KB

付随資料 (公開)

There is no public supplementary material available

引用

Taylor, A. M., Ahlers, M., & Aharonian, F. A. (2011). The need for a local source of ultrahigh-energy cosmic-ray nuclei. Physical Review D, 84(10):. doi:10.1103/PhysRevD.84.105007.

引用: https://hdl.handle.net/11858/00-001M-0000-0012-3065-A

要旨

Recent results of the Pierre Auger (Auger) fluorescence detectors indicate an increasingly heavy composition of ultra-high energy (UHE) cosmic rays (CRs). Assuming that this trend continues up to the highest energies observed by the Auger surface detectors we derive the constraints this places on the local source distribution of UHE CR nuclei. Utilizing an analytic description of UHE CR propagation we derive the expected spectra and composition for a wide range of source emission spectra. We find that sources of intermediate-to-heavy nuclei are consistent with the observed spectra and composition data above the ankle. This consistency requires the presence of nearby sources within 60 Mpc and 80 Mpc for silicon and iron only sources, respectively. The necessity of these local sources becomes even more compelling in the presence nano-Gauss local extragalactic magnetic fields.