Aug 27 – 31, 2018
LVH, Luisenstraße 58, 10117 Berlin
Europe/Berlin timezone

Numerical multi-zone leptohadronic models of gamma rays and neutrino emission by magnetic reconnection

Aug 28, 2018, 3:45 PM
LVH, Luisenstraße 58, 10117 Berlin

LVH, Luisenstraße 58, 10117 Berlin

<a href="" target="_blank"><b>LANGENBECK VIRCHOW HAUS</b></a> Luisenstraße 58, 10117 Berlin
Board: GR17
Poster (A0 portrait) Gamma-rays Poster Session and Coffee Break


Rafael Alves Batista (University of São Paulo)


TeV gamma-ray emission has been detected from non-blazar low luminosity active galactic nuclei (LLAGN), establishing them as potential cosmic-ray accelerators as well as sources of PeV neutrino emission. However, current observations cannot determine whether the TeV gamma rays come from the jet or from the black hole (BH) core region. In this work we consider numerical general relativitic MHD models of advection-dominated accretion flows (ADAF) around BHs where turbulent magnetic reconnection is likely to occur and accelerate cosmic rays to high energies. We use this numerical ADAF model as a background environment where we perform Monte Carlo simulations of the propagation of cosmic rays employing the CRPropa3 code. In our models we consider the interaction of cosmic rays with the magnetic, matter, and photon fields of the ADAF and obtain gamma-ray and neutrino fluxes. Based on our results, we discuss whether the detected TeV emission from non-blazar LLAGNs originated in the BH core region.

Primary author

Juan Carlos Rodríguez-Ramírez (University of São Paulo)


Elisabete M. de Gouveia Dal Pino (University of São Paulo) Rafael Alves Batista (University of São Paulo)

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