Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares
There is mounting evidence that blazars are the sources of part of the very-high-energy astrophysical neutrino flux detected by IceCube. In particular, there have been several spatial and temporal coincidences of individual IceCube neutrino events with flaring blazars, the most prominent of them bei...
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IOP Publishing
2024-01-01
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| Online Access: | https://doi.org/10.3847/1538-4357/ad8dce |
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| author | Joshua Robinson Markus Böttcher |
| author_facet | Joshua Robinson Markus Böttcher |
| author_sort | Joshua Robinson |
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| description | There is mounting evidence that blazars are the sources of part of the very-high-energy astrophysical neutrino flux detected by IceCube. In particular, there have been several spatial and temporal coincidences of individual IceCube neutrino events with flaring blazars, the most prominent of them being IceCube-170922A, coincident with a multiwavelength flare of TXS 0506+056. Motivated by this, we used the time-dependent lepto-hadronic code OneHaLe to model the spectral energy distributions and light curves of a sample of bright γ -ray flares of blazars detected by Fermi-Large Area Telescope, for which Kreter et al. provided calorimetric estimates of the expected neutrino detection rates. Flares were modeled with temporal changes of the proton injection spectra. Our analysis shows that the calorimetric approach overestimates the increase in neutrino production by a factor of typically ∼10 if the γ -ray emission is dominated by proton-synchrotron radiation. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2024-01-01 |
| publisher | IOP Publishing |
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| series | The Astrophysical Journal |
| spelling | doaj-art-b51018e650344e22b1840e73cbacc6182024-12-02T08:28:16ZengIOP PublishingThe Astrophysical Journal1538-43572024-01-0197714210.3847/1538-4357/ad8dceNeutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar FlaresJoshua Robinson0https://orcid.org/0000-0001-6399-3001Markus Böttcher1https://orcid.org/0000-0002-8434-5692Centre for Space Research, North-West University, Potchefstroom, 2520, South AfricaCentre for Space Research, North-West University, Potchefstroom, 2520, South AfricaThere is mounting evidence that blazars are the sources of part of the very-high-energy astrophysical neutrino flux detected by IceCube. In particular, there have been several spatial and temporal coincidences of individual IceCube neutrino events with flaring blazars, the most prominent of them being IceCube-170922A, coincident with a multiwavelength flare of TXS 0506+056. Motivated by this, we used the time-dependent lepto-hadronic code OneHaLe to model the spectral energy distributions and light curves of a sample of bright γ -ray flares of blazars detected by Fermi-Large Area Telescope, for which Kreter et al. provided calorimetric estimates of the expected neutrino detection rates. Flares were modeled with temporal changes of the proton injection spectra. Our analysis shows that the calorimetric approach overestimates the increase in neutrino production by a factor of typically ∼10 if the γ -ray emission is dominated by proton-synchrotron radiation.https://doi.org/10.3847/1538-4357/ad8dceBlazarsNeutrino astronomyActive galactic nucleiGamma-ray astronomy |
| spellingShingle | Joshua Robinson Markus Böttcher Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares The Astrophysical Journal Blazars Neutrino astronomy Active galactic nuclei Gamma-ray astronomy |
| title | Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares |
| title_full | Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares |
| title_fullStr | Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares |
| title_full_unstemmed | Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares |
| title_short | Neutrino Detection Rates from Lepto-hadronic Model Simulations of Bright Blazar Flares |
| title_sort | neutrino detection rates from lepto hadronic model simulations of bright blazar flares |
| topic | Blazars Neutrino astronomy Active galactic nuclei Gamma-ray astronomy |
| url | https://doi.org/10.3847/1538-4357/ad8dce |
| work_keys_str_mv | AT joshuarobinson neutrinodetectionratesfromleptohadronicmodelsimulationsofbrightblazarflares AT markusbottcher neutrinodetectionratesfromleptohadronicmodelsimulationsofbrightblazarflares |