On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays

The origin of the first magnetic fields in the Universe is a standing problem in cosmology. Intergalactic magnetic fields (IGMFs) may be an untapped window to the primeval Universe, providing further constrains on magnetogenesis. We demonstrate the feasibility of using ultra-high-energy cosmic rays...

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Autori principali: Alves Batista, R, Saveliev, A
Natura: Journal article
Lingua:English
Pubblicazione: IOP Publishing 2019
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author Alves Batista, R
Saveliev, A
author_facet Alves Batista, R
Saveliev, A
author_sort Alves Batista, R
collection OXFORD
description The origin of the first magnetic fields in the Universe is a standing problem in cosmology. Intergalactic magnetic fields (IGMFs) may be an untapped window to the primeval Universe, providing further constrains on magnetogenesis. We demonstrate the feasibility of using ultra-high-energy cosmic rays (UHECRs) to constrain the helicity of IGMFs by performing simulations of cosmic-ray propagation in simple magnetic field configurations. We show that the first harmonic moments of the arrival distribution of UHECRs may be used to measure the absolute value of the helicity and its sign.
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spelling oxford-uuid:5fbd1ba2-57f0-43f5-9dfc-46e644ce4dc02022-03-26T17:48:46ZOn the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic raysJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5fbd1ba2-57f0-43f5-9dfc-46e644ce4dc0EnglishSymplectic ElementsIOP Publishing2019Alves Batista, RSaveliev, AThe origin of the first magnetic fields in the Universe is a standing problem in cosmology. Intergalactic magnetic fields (IGMFs) may be an untapped window to the primeval Universe, providing further constrains on magnetogenesis. We demonstrate the feasibility of using ultra-high-energy cosmic rays (UHECRs) to constrain the helicity of IGMFs by performing simulations of cosmic-ray propagation in simple magnetic field configurations. We show that the first harmonic moments of the arrival distribution of UHECRs may be used to measure the absolute value of the helicity and its sign.
spellingShingle Alves Batista, R
Saveliev, A
On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays
title On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays
title_full On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays
title_fullStr On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays
title_full_unstemmed On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays
title_short On the measurement of the helicity of intergalactic magnetic fields using ultra-high-energy cosmic rays
title_sort on the measurement of the helicity of intergalactic magnetic fields using ultra high energy cosmic rays
work_keys_str_mv AT alvesbatistar onthemeasurementofthehelicityofintergalacticmagneticfieldsusingultrahighenergycosmicrays
AT savelieva onthemeasurementofthehelicityofintergalacticmagneticfieldsusingultrahighenergycosmicrays