Original title: On maximum energy cutoff in the hotspot of radiogalaxies 3C 105 and 3C 445
Authors: Pulnova, Y. ; Araudo, Anabella
Document type: Papers
Conference/Event: RAGtime /20.-22./, Opava (CZ), 20181015
Year: 2020
Language: eng
Abstract: The origin of Ultra-High-Energy Cosmic Rays is still unknown, and Active Galactic Nuclei have been proposed as candidates to accelerate these particles. Using thewell-resolved radio emission from radiogalaxies 3C 105 and 3C 445 we investigate the standard assumption that the distribution of non-thermal electrons has a maximum energy cutoff due to the synchrotron cooling. We show that as a consequence this would lead to an unphysically large number density in the hotspot. This result has important implications for the origin of Ultra-High-Energy Cosmic Rays.
Keywords: diffusive shock acceleration; synchrotroncooling; ultra-high-energy cosmic rays
Project no.: GA20-19854S (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of RAGtime 20/22: Workshops on black holes and neutron stars, ISBN 978-80-7510-433-5

Institution: Astronomical Institute AS ČR (web)
Document availability information: Fulltext is available at external website.
External URL: http://proceedings.physics.cz/images/proc21/pul.pdf
Original record: http://hdl.handle.net/11104/0317190

Permalink: http://www.nusl.cz/ntk/nusl-432423


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Conference materials > Papers