Influence of the Galactic magnetic field on large-scale anisotropies of ultra-high energy cosmic rays

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of the Galactic magnetic field on large-scale anisotropies of ultra-high energy cosmic rays

Popis výsledku v původním jazyce

We present an analysis of effects of Galactic magnetic field on large scale structures in arrival directions of cosmic rays. Recent measurements of the Pierre Auger Observatory show a dipole pattern of arrival directions of cosmic rays above 8 EeV with amplitude ∼ 6.5 % pointing far(∼125°)from the Galactic center. It demonstrates that these particles are of an extragalactic origin. We performed direct simulations of cosmic rays in CRPropa 3 propagated in the Jansson-Farrar model of the Galactic magnetic field. The large-scale patterns in the arrival directions of cosmic rays arising from an isotropic distribution of sources only due to the presence of the Galactic magnetic field were investigated for different scenarios of mass composition of cosmic rays. Arrival directions of simulated cosmic rays were investigated also for a dipolar distribution of sources outside the Galaxy with two directions of the injected dipole.n

Název v anglickém jazyce

Influence of the Galactic magnetic field on large-scale anisotropies of ultra-high energy cosmic rays

Popis výsledku anglicky

We present an analysis of effects of Galactic magnetic field on large scale structures in arrival directions of cosmic rays. Recent measurements of the Pierre Auger Observatory show a dipole pattern of arrival directions of cosmic rays above 8 EeV with amplitude ∼ 6.5 % pointing far(∼125°)from the Galactic center. It demonstrates that these particles are of an extragalactic origin. We performed direct simulations of cosmic rays in CRPropa 3 propagated in the Jansson-Farrar model of the Galactic magnetic field. The large-scale patterns in the arrival directions of cosmic rays arising from an isotropic distribution of sources only due to the presence of the Galactic magnetic field were investigated for different scenarios of mass composition of cosmic rays. Arrival directions of simulated cosmic rays were investigated also for a dipolar distribution of sources outside the Galaxy with two directions of the injected dipole.n

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10303 - Particles and field physics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Science. 36th International Cosmic Ray Conference ICRC2019

ISBN

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ISSN

1824-8039

e-ISSN

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Počet stran výsledku

8

Strana od-do

1-8

Název nakladatele

Proceedings of Science

Místo vydání

Trieste

Místo konání akce

Madison

Datum konání akce

24. 7. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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