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Particle acceleration and the origin of the very high energy emission around black holes and relativistic jets

Published online by Cambridge University Press:  07 April 2020

Elisabete M. de Gouveia Dal Pino
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG-USP), Universidade de São Paulo, R. do Matão, 1226 05508-090 São Paulo, SP Brasil email: dalpino@iag.usp.br
Grzegorz Kowal
Affiliation:
EACH, Universidade de São Paulo
Luis Kadowaki
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG-USP), Universidade de São Paulo, R. do Matão, 1226 05508-090 São Paulo, SP Brasil email: dalpino@iag.usp.br
Tania E. Medina-Torrejón
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG-USP), Universidade de São Paulo, R. do Matão, 1226 05508-090 São Paulo, SP Brasil email: dalpino@iag.usp.br
Yosuke Mizuno
Affiliation:
Physics Institute, University of Tel Aviv
Chandra Singh
Affiliation:
Physics Institute, University of Frankfurt
Corresponding
E-mail address:

Abstract

Particle acceleration induced by fast magnetic reconnection may help to solve current puzzles related to the interpretation of the very high energy (VHE) and neutrino emissions from AGNs and compact sources in general. Our general relativistic-MHD simulations of accretion disk-corona systems reveal the growth of turbulence driven by MHD instabilities that lead to the development of fast magnetic reconnection in the corona. In addition, our simulations of relativistic MHD jets reveal the formation of several sites of fast reconnection induced by current-driven kink turbulence. The injection of thousands of test particles in these regions causes acceleration up to energies of several PeVs, thus demonstrating the ability of this process to accelerate particles and produce VHE and neutrino emission, specially in blazars. Finally, we discuss how reconnection can also explain the observed VHE luminosity-black hole mass correlation, involving hundreds of non-blazar sources like Perseus A, and black hole binaries.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020

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