Search for TeV Neutrinos from Seyfert Galaxies in the Southern Sky using Starting Track Events in IceCube
Supermassive black holes (SMBHs) power active galactic nuclei (AGN). The vicinity of the SMBH has long been proposed as the potential site of particle acceleration and neutrino production. Recently, IceCube reported evidence of neutrino emission from the Seyfert II galaxy NGC 1068. The absence of a...
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Zusammenfassung: | Supermassive black holes (SMBHs) power active galactic nuclei (AGN). The
vicinity of the SMBH has long been proposed as the potential site of particle
acceleration and neutrino production. Recently, IceCube reported evidence of
neutrino emission from the Seyfert II galaxy NGC 1068. The absence of a
matching flux of TeV gamma rays suggests that neutrinos are produced where
gamma rays can efficiently get attenuated, for example, in the hot coronal
environment near the SMBH at the core of the AGN. Here, we select the
intrinsically brightest (in X-ray) Seyfert galaxies in the Southern Sky from
the BAT AGN Spectroscopic Survey (BASS) and search for associated neutrinos
using starting track events in IceCube. In addition to the standard power law
flux assumption, we leverage a dedicated disc-corona model of neutrino
production in such an environment to improve the discovery potential of the
search. In this contribution, we report on the expected performance of our
searches for neutrinos from these Seyfert galaxies. |
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DOI: | 10.48550/arxiv.2307.15620 |