%0 Journal Article %1 cerruti2018leptohadronic %A Cerruti, M. %A Zech, A. %A Boisson, C. %A Emery, G. %A Inoue, S. %A Lenain, J. P. %D 2018 %K TXS hadronic icecube modeling neutrino %R 10.1093/mnrasl/sly210 %T Lepto-hadronic single-zone models for the electromagnetic and neutrino emission of TXS 0506+056 %U http://arxiv.org/abs/1807.04335 %X While active galactic nuclei with relativistic jets have long been prime candidates for the origin of extragalactic cosmic rays and neutrinos, the BL Lac object TXS 0506+056 is the first astrophysical source observed to be associated with some confidence ($3\sigma$) with a high-energy neutrino, IceCube-170922A, detected by the IceCube Observatory. The source was found to be active in high-energy gamma-rays with Fermi-LAT and in very-high-energy gamma-rays with the MAGIC telescopes. To consistently explain the observed neutrino and multi-wavelength electromagnetic emission of TXS 0506+056, we investigate in detail single-zone models of lepto-hadronic emission, assuming co-spatial acceleration of electrons and protons in the jet, and synchrotron photons from the electrons as targets for photo-hadronic neutrino production. The parameter space concerning the physical conditions of the emission region and particle populations is extensively explored for scenarios where the gamma-rays are dominated by either 1) proton synchrotron emission or 2) synchrotron-self-Compton emission, with a subdominant but non-negligible contribution from photo-hadronic cascades in both cases. We find that the latter can be compatible with the neutrino observations, while the former is strongly disfavoured due to the insufficient neutrino production rate.

@article{cerruti2018leptohadronic, abstract = {While active galactic nuclei with relativistic jets have long been prime candidates for the origin of extragalactic cosmic rays and neutrinos, the BL Lac object TXS 0506+056 is the first astrophysical source observed to be associated with some confidence ($\sim 3\sigma$) with a high-energy neutrino, IceCube-170922A, detected by the IceCube Observatory. The source was found to be active in high-energy gamma-rays with Fermi-LAT and in very-high-energy gamma-rays with the MAGIC telescopes. To consistently explain the observed neutrino and multi-wavelength electromagnetic emission of TXS 0506+056, we investigate in detail single-zone models of lepto-hadronic emission, assuming co-spatial acceleration of electrons and protons in the jet, and synchrotron photons from the electrons as targets for photo-hadronic neutrino production. The parameter space concerning the physical conditions of the emission region and particle populations is extensively explored for scenarios where the gamma-rays are dominated by either 1) proton synchrotron emission or 2) synchrotron-self-Compton emission, with a subdominant but non-negligible contribution from photo-hadronic cascades in both cases. We find that the latter can be compatible with the neutrino observations, while the former is strongly disfavoured due to the insufficient neutrino production rate.}, added-at = {2019-10-16T10:11:53.000+0200}, author = {Cerruti, M. and Zech, A. and Boisson, C. and Emery, G. and Inoue, S. and Lenain, J. P.}, biburl = {https://www.bibsonomy.org/bibtex/2d6edec6d6eb39f84cf2e5e3f620d2b46/davidlapp}, description = {Lepto-hadronic single-zone models for the electromagnetic and neutrino emission of TXS 0506 056}, doi = {10.1093/mnrasl/sly210}, interhash = {aba500802ad677e64332f198cd682f66}, intrahash = {d6edec6d6eb39f84cf2e5e3f620d2b46}, keywords = {TXS hadronic icecube modeling neutrino}, note = {cite arxiv:1807.04335Comment: In press in MNRAS; v2 to match the accepted version}, timestamp = {2019-10-16T10:11:53.000+0200}, title = {Lepto-hadronic single-zone models for the electromagnetic and neutrino emission of TXS 0506+056}, url = {http://arxiv.org/abs/1807.04335}, year = 2018 }