A Unified Model for Multi-epoch Neutrino Events and Broadband Spectral Energy Distribution of $rm TXS~0506+056$. (arXiv:2401.06304v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Wang_Z/0/1/0/all/0/1">Zhen-Jie Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Liu_R/0/1/0/all/0/1">Ruo-Yu Liu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_Z/0/1/0/all/0/1">Ze-Rui Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_J/0/1/0/all/0/1">Junfeng Wang</a>
The blazar $TXS~0506+056$ has been proposed as a high-energy neutrino
emitter. However, it has been shown that the standard one-zone model cannot
produce sufficiently high neutrino flux due to constraints from the X-ray data,
implying more complex properties of the radiation zones in the blazar than that
described by the standard one-zone model. In this work we investigate
multi-epoch high-energy muon neutrino events associated with the blazar
$TXS~0506+056$ occured in 2014-2015, 2017-2018, 2021-2022 and 2022-2023,
respectively. We applied the so-called “stochastic dissipation model” to
account for the neutrino-blazar associations detected in the four epochs
simultaenously. This model describes a scenario in which the emission of the
blazar arise from the superimposition of two components: a persistent component
related to the quasi-stable state of the blazar and a transient component
responsible for the sudden enhancement of the blazar’s flux, either in
electromagnetic radiation or in neutrino emission. The latter component could
form at a random distance along the jet by a strong energy dissipation event.
Under such assumption, the multi-epoch broadband spectral energy distribution
(SED) can be well explained and the expected number of high-energy neutrino
events is statistically realistic. The expected number of neutrino events in
half-year is around 8.2, 0.07, 0.73 and 0.41, corresponding to the epoch in
2014-2015, 2017-2018, 2021-2022 and 2022-2023, respectively. Hence, our model
self-consistently explains the episodic neutrino emission from $TXS~0506+056$.
The blazar $TXS~0506+056$ has been proposed as a high-energy neutrino
emitter. However, it has been shown that the standard one-zone model cannot
produce sufficiently high neutrino flux due to constraints from the X-ray data,
implying more complex properties of the radiation zones in the blazar than that
described by the standard one-zone model. In this work we investigate
multi-epoch high-energy muon neutrino events associated with the blazar
$TXS~0506+056$ occured in 2014-2015, 2017-2018, 2021-2022 and 2022-2023,
respectively. We applied the so-called “stochastic dissipation model” to
account for the neutrino-blazar associations detected in the four epochs
simultaenously. This model describes a scenario in which the emission of the
blazar arise from the superimposition of two components: a persistent component
related to the quasi-stable state of the blazar and a transient component
responsible for the sudden enhancement of the blazar’s flux, either in
electromagnetic radiation or in neutrino emission. The latter component could
form at a random distance along the jet by a strong energy dissipation event.
Under such assumption, the multi-epoch broadband spectral energy distribution
(SED) can be well explained and the expected number of high-energy neutrino
events is statistically realistic. The expected number of neutrino events in
half-year is around 8.2, 0.07, 0.73 and 0.41, corresponding to the epoch in
2014-2015, 2017-2018, 2021-2022 and 2022-2023, respectively. Hence, our model
self-consistently explains the episodic neutrino emission from $TXS~0506+056$.
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