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Title: The breaks and the hidden components in the power-law spectra of synchrotron radiation of the self-consistent current structures

Widespread use of a broken-power-law description of the spectra of synchrotron emission of various plasma objects requires an analysis of origin and a proper interpretation of spectral components. We show that, for a self-consistent magnetic configuration in a collisionless plasma, these components may be angle-dependent according to an anisotropic particle momentum distribution and may have no counterparts in a particle energy distribution. That has never been studied analytically and is in contrast to a usual model of synchrotron radiation, assuming an external magnetic field and a particle ensemble with isotropic momentum distribution. We demonstrate that for the wide intervals of observation angle the power-law spectra and, in particular, the positions and number of spectral breaks may be essentially different for the cases of the self-consistent and not-self-consistent magnetic fields in current structures responsible for the synchrotron radiation of the ensembles of relativistic particles with the multi-power-law energy distributions.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3] ;  [4]
  1. Institute of Applied Physics, Russian Academy of Science, 46 Ulyanov Street, Nizhny Novgorod 603950 (Russian Federation)
  2. (United States)
  3. (Russian Federation)
  4. ZAO “Intel” A/O, 30 Turgeneva Street, Nizhny Novgorod 603024 (Russian Federation)
Publication Date:
OSTI Identifier:
22490086
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 8; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANISOTROPY; COLLISIONLESS PLASMA; ENERGY SPECTRA; MAGNETIC FIELD CONFIGURATIONS; MAGNETIC FIELDS; PARTICLES; RELATIVISTIC RANGE; SYNCHROTRON RADIATION