Phase-transient hierarchical turbulence as an energy correlation generator of blazar light curves

Details Phase-transient hierarchical turbulence as an energy correlation generator of blazar light curves Phase-transient hierarchical turbulence as an energy correlation generator of blazar light curves

2008-02-06

arxiv.org/abs/0802.0899v2

Astrophys.J. 675 (2008) L61-L64

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, accepted for publication in ApJ Letters

Scientific paper

10.1086/533528

Hierarchical turbulent structure constituting a jet is considered to reproduce energy-dependent variability in blazars, particularly, the correlation between X- and gamma-ray light curves measured in the TeV blazar Markarian 421. The scale-invariant filaments are featured by the ordered magnetic fields that involve hydromagnetic fluctuations serving as electron scatterers for diffusive shock acceleration, and the spatial size scales are identified with the local maximum electron energies, which are reflected in the synchrotron spectral energy distribution (SED) above the near-infrared/optical break. The structural transition of filaments is found to be responsible for the observed change of spectral hysteresis.

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