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Photon and Neutrino Emission from Active Galactic Nuclei by Peter L. Biermann; Julia K. Becker; Laurenţiu I. Caramete; Federico Fraschetti; Tanja Kneiske; Athina Meli; Todor Stanev is a Physics and Astronomy article available to read on EtoBox.

What is Photon and Neutrino Emission from Active Galactic Nuclei about?

Supermassive black holes in the centers of galaxies are very common. They are known to rotate, accrete, spin down and eject highly relativistic jets; those jets pointed at us all seem to show a spectrum with two strong bumps, one in the TeV photon range, and one in X-rays -ordered by the emission frequency of the first bump this constitutes the blazar sequence. Here we wish to explain this sequence as primary synchrotron emission of energetic electrons and protons, and secondary emission from interactions at the first strong shockwave pattern in the relativistic jet. With two key assumptions on particle scattering, this concept predicts that the two basic maximum peak frequencies ν syn,e,p scale with the mass of the central black hole as νe,p ∼ M -1/2 BH , have a ratio of νsyn,p/νsyn,e = (mp/me) 3 , and the luminosities with the mass itself Le,p ∼ MBH . Due to strong losses of the leptons, the peak luminosities are generally the same, but with large variations around equality. This model predicts large fluxes in ultra high energy cosmic rays, and also large neutrino luminosities.

Who reads Photon and Neutrino Emission from Active Galactic Nuclei?

Author

Peter L. Biermann; Julia K. Becker; Laurenţiu I. Caramete; Federico Fraschetti; Tanja Kneiske; Athina Meli; Todor Stanev

Publisher

Elsevier Science; Elsevier ; North-Holland Publ Co; Elsevier BV (ISSN 0920-5632)

Published

2011

Language

EN

Field

Physics and Astronomy (Physical Sciences)