Hadronic modeling of TeV AGN: gammas and neutrinos

TL;DR

This paper presents a stationary lepto-hadronic model for blazar emission, focusing on TeV BL Lac objects and Centaurus A, analyzing their gamma-ray and neutrino outputs and comparing them with current detector sensitivities.

Contribution

It introduces a new lepto-hadronic modeling code for blazars and applies it to specific TeV sources to study their neutrino emissions in detail.

Findings

Hadronic models can produce detectable neutrino fluxes from TeV blazars.

Comparison shows some sources' neutrino emissions are within current detector sensitivities.

The model helps differentiate between leptonic and hadronic emission scenarios.

Abstract

Blazar emission models are usually divided into two big families, leptonic and hadronic, according to the particles which are responsible for the gamma-ray component of their spectral energy distributions. Even though leptonic models have been successful in explaining the gamma-ray emission from most blazars, hadronic models still present an intriguing alternative. They have the unique advantage to link the emission of photons, neutrinos, and cosmic rays from the astrophysical source. We have developed a stationary one-zone lepto-hadronic code to model the emission from blazars in both leptonic and hadronic scenarios. In this contribution we focus on hadronic modeling of a few selected TeV blazars of the BL Lac type and the radio galaxy Centaurus A detected by Cherenkov telescopes. We study in particular their associated neutrino emission, for different hadronic scenarios, and how it compares to the sensitivity of current neutrino detectors.