The Gluon Condensation model fits gamma-ray spectra of TXS 0506+056 and NGC 1068 with neutrino predictions consistent with IceCube, but predicts unphysical hardening for SNR G54.1+0.3.
Paiano et al.,A Multiwavelength View of the Neutrino-emitting Blazar TXS 0506+056, ApJL854(2018) L32 [arXiv:1802.01939] [INSPIRE]
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abstract
The bright BL Lac object TXS 0506+056 is a most likely counterpart of the IceCube neutrino event EHE 170922A. The lack of this redshift prevents a comprehensive understanding of the modeling of the source. We present high signal-to-noise optical spectroscopy, in the range 4100-9000 $\textrm{\AA}$, obtained at the 10.4m Gran Telescopio Canarias. The spectrum is characterized by a power law continuum and is marked by faint interstellar features. In the regions unaffected by these features, we found three very weak (EW $\sim$ 0.1 $\textrm{\AA}$) emission lines that we identify with [O II] 3727 $\textrm{\AA}$, [O III] 5007 $\textrm{\AA}$, and [N II] 6583 $\textrm{\AA}$, yielding the redshift z = 0.3365$\pm$0.0010.
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AGN (jetted and non-jetted) are viable high-energy neutrino sources, with TXS 0506+056 and NGC 1068 as the only statistically significant associations so far, while gamma-ray blazars contribute only a small fraction of the diffuse flux.
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A Unified Explanation of Gamma-Ray and Neutrino Spectra from Astrophysical Sources Based on the Gluon Condensation Model
The Gluon Condensation model fits gamma-ray spectra of TXS 0506+056 and NGC 1068 with neutrino predictions consistent with IceCube, but predicts unphysical hardening for SNR G54.1+0.3.
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Active Galactic Nuclei as high-energy neutrino sources
AGN (jetted and non-jetted) are viable high-energy neutrino sources, with TXS 0506+056 and NGC 1068 as the only statistically significant associations so far, while gamma-ray blazars contribute only a small fraction of the diffuse flux.
- Probing Scalar Non-Standard Neutrino Interactions using High-Energy Astrophysical Neutrinos