Towards extracting cosmic magnetic field structures from cosmic-ray arrival directions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00546102" target="_blank" >RIV/68378271:_____/21:00546102 - isvavai.cz</a>
Result on the web
<a href="https://www.doi.org/10.1140/epjc/s10052-021-09575-x" target="_blank" >https://www.doi.org/10.1140/epjc/s10052-021-09575-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-021-09575-x" target="_blank" >10.1140/epjc/s10052-021-09575-x</a>
Alternative languages
Result language
angličtina
Original language name
Towards extracting cosmic magnetic field structures from cosmic-ray arrival directions
Original language description
We present a novel method to search for structures of coherently aligned patterns in ultra-high energy cosmic-ray arrival directions simultaneously across the entire sky. This method can be used to obtain information on the Galactic magnetic field, in particular the integrated component perpendicular to the line of sight, from cosmic-ray data only. Using a likelihood-ratio approach, neighboring cosmic rays are related by rotatable, elliptically shaped density distributions and the significance of their alignment with respect to circular distributions is evaluated. In this way, a vector field tangential to the celestial sphere is fitted which approximates the local deflections in cosmic magnetic fields if significant deflection structures are detected. The sensitivity of the method is evaluated on the basis of astrophysical simulations of the ultra-high energy cosmic-ray sky, where a discriminative power between isotropic and signal-induced scenarios is found.n
Czech name
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Czech description
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Classification
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
Result continuities
Project
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Continuities
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Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
81
Issue of the periodical within the volume
9
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
794
UT code for WoS article
000693580100001
EID of the result in the Scopus database
2-s2.0-85114428560