12-23 July 2021
Online
Europe/Berlin timezone

High-energy neutrinos and gamma-rays from the AGN-driven wind in NGC 1068

12 Jul 2021, 18:00
1h 30m
06

06

Talk MM | Multi-Messenger Discussion

Speaker

Susumu Inoue (Bunkyo Univ. / RIKEN)

Description

Various observations are revealing the widespread occurrence of fast and powerful winds in active galactic nuclei (AGN) that are distinct from relativistic jets, likely launched from accretion disks. Such winds can harbor collisionless shocks at different locations that may induce acceleration of protons and electrons and consequent nonthermal emission. We focus on the inner regions of the winds, where interactions of accelerated protons with the nuclear radiation field and/or ambient gas can induce emission of high-energy neutrinos and gamma-rays. In particular, we address the case of NGC 1068, a nearby Seyfert galaxy bearing a powerful wind, which is a known source of GeV gamma rays as well as a tentative source of sub-PeV neutrinos. Tests and further implications of this scenario are discussed.

Keywords

neutrinos, gamma rays, AGN, wind

Subcategory Theoretical Results

Primary author

Susumu Inoue (Bunkyo Univ. / RIKEN)

Co-authors

Matteo Cerruti (Institut de Ciències del Cosmos - Universitat de Barcelona) Kohta Murase (Penn State University) Ruoyu Liu (Nanjing University)

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