Characterizing High-Energy Neutrino Emission Parameters in Bright Seyfert Galaxies and Quasars

18 Jun 2024, 17:30
2h
Near Aula Magna (U6 building) (University of Milano-Bicocca)

Near Aula Magna (U6 building)

University of Milano-Bicocca

Piazza dell’Ateneo Nuovo 1, Milano, 20126
Poster Astrophysical neutrinos Poster session and reception 1

Speaker

Jose Carpio (University of Nevada Las Vegas)

Description

Observation of high-energy neutrinos from the direction of nearby active galaxy, NGC 1068, was a major step in identifying for the origin of high-energy neutrinos. This observation revealed that high-energy neutrinos originated at the heart of active galaxies which are opaque to gamma-ray emission. The realization that is reinforced by the excess of neutrinos in the direction of NGC 4151, another nearby AGN. Modeling neutrino emission from the core of AGN relies on the multi-wavelength observation of the inner parts of the active galaxy and is challenging due to the uncertainties associated with the absorption of emission in these dense environments. Here, we employ the measured neutrino spectra together with the sub-GeV $\gamma$-ray emission measured by the Fermi satellite to break the degeneracy and narrow in on the parameter space of neutrino emission from the coronae of AGN. Our result will help estimating the prospects for identification of additional sources and guide future targeted analyses

Poster prize Yes
Given name Jose
Surname Carpio
First affiliation University of Nevada Las Vegas
Institutional email jose.carpiodumler@unlv.edu
Gender Male

Primary author

Jose Carpio (University of Nevada Las Vegas)

Co-authors

Dr Ali Kheirandish (University of Nevada Las Vegas) Kohta Murase

Presentation materials