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...
| Hauptverfasser: | , |
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| Format: | Journal article |
| Sprache: | English |
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IOP Publishing
2019
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| _version_ | 1826275122948866048 |
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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. |
| first_indexed | 2024-03-06T22:53:54Z |
| format | Journal article |
| id | oxford-uuid:5fbd1ba2-57f0-43f5-9dfc-46e644ce4dc0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:53:54Z |
| publishDate | 2019 |
| publisher | IOP Publishing |
| record_format | dspace |
| 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 |