Probing the sources of ultra-high-energy cosmic rays-constraints from cosmic-ray measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A90232%2F25%3A00641932" target="_blank" >RIV/68378271:90232/25:00641932 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/universe11100331" target="_blank" >https://doi.org/10.3390/universe11100331</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/universe11100331" target="_blank" >10.3390/universe11100331</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Probing the sources of ultra-high-energy cosmic rays-constraints from cosmic-ray measurements

Popis výsledku v původním jazyce

Ultra-high-energy cosmic rays (UHECRs) are the most energetic particles known-and yet their origin is still an open question. However, with the precision and accumulated statistics of the Pierre Auger Observatory and the Telescope Array, in combination with advancements in theory and modeling-e.g., of the Galactic magnetic field-it is now possible to set solid constraints on the sources of UHECRs. The spectrum and composition measurements above the ankle can be well described by a population of extragalactic, homogeneously distributed sources emitting mostly intermediate-mass nuclei. Additionally, using the observed anisotropy in the arrival directions, namely the large-scale dipole > 8 EeV, as well as smaller-scale warm spots at higher energies, even more powerful constraints on the density and distribution of sources can be placed. Yet, open questions remain-like the striking similarity of the sources that is necessary to describe the rather pure mass composition above the ankle, or the origin of the highest energy events whose tracked back directions point toward voids. The current findings and possible interpretation of UHECR data will be presented in this review.

Název v anglickém jazyce

Probing the sources of ultra-high-energy cosmic rays-constraints from cosmic-ray measurements

Popis výsledku anglicky

Ultra-high-energy cosmic rays (UHECRs) are the most energetic particles known-and yet their origin is still an open question. However, with the precision and accumulated statistics of the Pierre Auger Observatory and the Telescope Array, in combination with advancements in theory and modeling-e.g., of the Galactic magnetic field-it is now possible to set solid constraints on the sources of UHECRs. The spectrum and composition measurements above the ankle can be well described by a population of extragalactic, homogeneously distributed sources emitting mostly intermediate-mass nuclei. Additionally, using the observed anisotropy in the arrival directions, namely the large-scale dipole > 8 EeV, as well as smaller-scale warm spots at higher energies, even more powerful constraints on the density and distribution of sources can be placed. Yet, open questions remain-like the striking similarity of the sources that is necessary to describe the rather pure mass composition above the ankle, or the origin of the highest energy events whose tracked back directions point toward voids. The current findings and possible interpretation of UHECR data will be presented in this review.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Universe

ISSN

2218-1997

e-ISSN

2218-1997

Svazek periodika

11

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

30

Strana od-do

331

Kód UT WoS článku

001604537800001

EID výsledku v databázi Scopus

2-s2.0-105020035615