Properties of Turbulence in the Reconnection Exhaust: Numerical Simulations Compared with Observations

@article{Pucci2017PropertiesOT,
  title={Properties of Turbulence in the Reconnection Exhaust: Numerical Simulations Compared with Observations},
  author={Francesco Pucci and Sergio Servidio and Luca Sorriso-Valvo and Vyacheslav Olshevsky and William H. Matthaeus and Francesco Malara and M. V. Goldman and David L. Newman and Giovanni Lapenta},
  journal={The Astrophysical Journal},
  year={2017},
  volume={841}
}
The properties of the turbulence that develops in the outflows of magnetic reconnection have been investigated using self-consistent plasma simulations, in three dimensions. As commonly observed in space plasmas, magnetic reconnection is characterized by the presence of turbulence. Here we provide a direct comparison of our simulations with reported observations of reconnection events in the magnetotail, investigating the properties of the electromagnetic field and the energy conversion… 

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References

SHOWING 1-10 OF 39 REFERENCES

Magnetic reconnection in two-dimensional magnetohydrodynamic turbulence.

Systematic analysis of numerical simulations of two-dimensional magnetohydrodynamic turbulence reveals the presence of a large number of X-type neutral points where magnetic reconnection occurs. We

Magnetic reconnection as an element of turbulence

Abstract. In this work, recent advances on the study of reconnection in turbulence are reviewed. Using direct numerical simulations of decaying incompressible two-dimensional magnetohydrodynamics

THE COMPLEX STRUCTURE OF MAGNETIC FIELD DISCONTINUITIES IN THE TURBULENT SOLAR WIND

Using high-resolution Cluster satellite observations and a multi-dimensional intermittency technique, we show that the magnetic discontinuities in the turbulent solar wind are connected through the

MULTI-SPACECRAFT MEASUREMENT OF TURBULENCE WITHIN A MAGNETIC RECONNECTION JET

The relationship between magnetic reconnection and plasma turbulence is investigated using multipoint in situ measurements from the Cluster spacecraft within a high-speed reconnection jet in the

Observations of turbulence generated by magnetic reconnection.

TLDR
Spacecraft observations of turbulence within a magnetic reconnection (guide field approximately 0) ion diffusion region are presented and the dispersion relation was found to be consistent with fast-mode-whistler waves rather than kinetic Alfvén-ion cyclotron waves.

Kinetic simulations of magnetized turbulence in astrophysical plasmas.

TLDR
The first ab initio, fully electromagnetic, kinetic simulations of magnetized turbulence in a homogeneous, weakly collisional plasma at the scale of the ion Larmor radius (ion gyroscale) support the hypothesis that the frequencies of turbulent fluctuations in the solar wind remain well below the ion cyclotron frequency.

Turbulent magnetic reconnection

The effects of turbulence on magnetic reconnection are investigated by two‐dimensional spectral method magnetohydrodynamic computations. The nonlinear evolution of the periodic sheet pinch

Reconnection in a weakly stochastic field

We examine the effect of weak, small-scale magnetic field structure on the rate of reconnection in a strongly magnetized plasma. This affects the rate of reconnection by reducing the transverse scale

Role of electron physics in the development of turbulent magnetic reconnection in collisionless plasmas

Magnetic reconnection is important to the dynamics of many astrophysical and fusion plasmas but our understanding of it is incomplete. Petaflop-scale simulations of the evolution of turbulent

Identification of intermittent multifractal turbulence in fully kinetic simulations of magnetic reconnection.

TLDR
It is found that the magnetic field fluctuations generated by reconnection are anisotropic, have nontrivial spatial correlation, and exhibit the hallmarks of finite range fluid turbulence: they have non-Gaussian distributions, exhibit extended self-similarity in their scaling, and are spatially multifractal.