Hadronic Clues in Quasars Caught by Fermi-LAT
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866909967725887488 |
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| author | Galván, Antonio Fraija, Nissim Aguilar-Ruiz, Edilberto Vargas, Hermes León Dainotti, Maria G. de Diego, Jose Antonio |
| author_facet | Galván, Antonio Fraija, Nissim Aguilar-Ruiz, Edilberto Vargas, Hermes León Dainotti, Maria G. de Diego, Jose Antonio |
| contents | This work explores whether hadronic processes could be responsible for the high-energy emission seen in quasars identified by the Large Area Telescope (LAT) instrument aboard the Fermi satellite. In contrast to purely leptonic models, this work investigates whether hadronic mechanisms can explain the observed gamma-ray spectra by analyzing the spectral energy distributions (SEDs) of a chosen sample of FSRQs (Flat-Spectrum Radio Quasars). By incorporating both hadronic and leptonic components into their multi-wavelength modeling, we evaluate the model's feasibility to simultaneously describe the data collected by Fermi-LAT and neutrinos detected by IceCube. According to the results, a hadronic contribution would be required to explain the SED of quasars detected by Fermi-LAT. However, their contribution to the neutrino flux detected by IceCube remains understated. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_15609 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hadronic Clues in Quasars Caught by Fermi-LAT Galván, Antonio Fraija, Nissim Aguilar-Ruiz, Edilberto Vargas, Hermes León Dainotti, Maria G. de Diego, Jose Antonio High Energy Astrophysical Phenomena This work explores whether hadronic processes could be responsible for the high-energy emission seen in quasars identified by the Large Area Telescope (LAT) instrument aboard the Fermi satellite. In contrast to purely leptonic models, this work investigates whether hadronic mechanisms can explain the observed gamma-ray spectra by analyzing the spectral energy distributions (SEDs) of a chosen sample of FSRQs (Flat-Spectrum Radio Quasars). By incorporating both hadronic and leptonic components into their multi-wavelength modeling, we evaluate the model's feasibility to simultaneously describe the data collected by Fermi-LAT and neutrinos detected by IceCube. According to the results, a hadronic contribution would be required to explain the SED of quasars detected by Fermi-LAT. However, their contribution to the neutrino flux detected by IceCube remains understated. |
| title | Hadronic Clues in Quasars Caught by Fermi-LAT |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2512.15609 |