On the angular anisotropy of the distribution function of radiating particles in relativistic jets
- Autores: Khalilov T.I.1,2, Beskin V.S.2,1, Pariev V.I.2
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Afiliações:
- Moscow Institute of Physics and Technology (National Research University)
- Theoretical Department of P. N. Lebedev Physical Institute of the Russian Academy of Sciences
- Edição: Volume 102, Nº 7 (2025)
- Páginas: 527-540
- Seção: Articles
- URL: https://bakhtiniada.ru/0004-6299/article/view/308153
- DOI: https://doi.org/10.31857/S0004629925070015
- EDN: https://elibrary.ru/qbfgnm
- ID: 308153
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Resumo
The observed power-law spectra of relativistic jets from active galactic nuclei clearly indicate the synchrotron mechanism of radiation by particles that also have a power-law energy spectrum. However, the issue of their angular anisotropy has not received sufficient attention until recently, although the example of the solar wind (where a strongly magnetized wind is also realized) shows the importance of taking this circumstance into account. In this paper, the evolution of the initially isotropic power-law spectrum of radiating particles as they propagate along expanding relativistic jets is investigated. It is shown that for relativistic flows in which the electric field plays a decisive role, the conservation of the first adiabatic invariant does not lead to a decrease in the pitch angles of the radiating particles as they enter the region of weak magnetic fields. This is due to the drift nature of the particle motion.
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Sobre autores
T. Khalilov
Moscow Institute of Physics and Technology (National Research University); Theoretical Department of P. N. Lebedev Physical Institute of the Russian Academy of Sciences
Email: beskin@lpi.ru
Dolgoprudny, Moscow region, Russia; Moscow, Russia
V. Beskin
Theoretical Department of P. N. Lebedev Physical Institute of the Russian Academy of Sciences; Moscow Institute of Physics and Technology (National Research University)
Email: beskin@lpi.ru
Moscow, Russia; Dolgoprudny, Moscow region, Russia
V. Pariev
Theoretical Department of P. N. Lebedev Physical Institute of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: beskin@lpi.ru
Moscow, Russia
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