On the relative importance of hadronic emission processes along the jet axis of active galactic nuclei
On the relative importance of hadronic emission processes along the jet axis of active galactic nuclei
复制标题
关于沿活动星系核射流轴的强子发射过程的相对重要性
DOI:
10.1093/mnras/staa1650
复制
发表时间:
2020
影响因子:
4.8
通讯作者:
Becker Tjus J
中科院分区:
文献类型:
--
作者:
Becker Tjus J
With the coincident detection of a gamma-ray flare and a neutrino from the blazar TXS 0506+056, active galactic nuclei (AGNs) have been put into focus as possible sources of the diffuse neutrino flux. We present a space and time-resolved model of the high-energy particle emission of a plasmoid assumed to travel along the axis of an AGN jet at relativistic speed. This was achieved by modifying the publicly availablecrpropa(version 3.1+) propagation framework that in our work is capable of being applied to source physics on sub-kpc scales. The propagation of a population of primary protons is modelled in a purely turbulent magnetic field and we take into account interactions of these protons with photons scattered from the accretion disc, synchrotron radiation emitted by ambient relativistic electrons, as well with themselves and with other ambient matter. Our model produces a PeV-neutrino flare caused mainly by photohadronic interactions of primaries with the accretion disc field. Secondary high-energy gamma-rays partly attenuate with the ambient photon fields whose combined optical depths achieve their minimal opacity for photons of around 10 TeV. Thus, our model is well capable of producing neutrino flares with a significantly reduced emission of gamma-rays in jets with a hadronic jet component that in the future can be fit to specific AGN flare scenarios.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
L. Gergely;P. Biermann
通讯作者:
P. Biermann
影响因子:
4.8
作者:
I. Christie;M. Petropoulou;L. Sironi;D. Giannios
通讯作者:
I. Christie;M. Petropoulou;L. Sironi;D. Giannios
影响因子:
4.8
作者:
W. Potter;G. Cotter
通讯作者:
G. Cotter
影响因子:
4.9
作者:
M. Zacharias;M. Böttcher;F. Jankowsky;J. Lenain;S. Wagner;A. Wierzcholska
通讯作者:
A. Wierzcholska
DOI:
10.1088/0004-637x/749/2/155
发表时间:
2012
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Eichmann;Schlickeiser
通讯作者:
Schlickeiser