Imperial College London
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Dr Lorenzo Matteini

Faculty of Natural Sciences, Department of Physics

Lecturer in Space Plasma Physics
 
 
 
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Contact

 

l.matteini

 
 
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Location

 

Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Burgess:2016:1/38,
author = {Burgess, D and Gingell, PW and Matteini, L},
doi = {1/38},
journal = {Astrophysical Journal},
title = {Multiple current sheet systems in the outer heliosphere: energy release and turbulence},
url = {http://dx.doi.org/10.3847/0004-637X/822/1/38},
volume = {822},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In the outer heliosphere, beyond the solar wind termination shock, it isexpected that the warped heliospheric current sheet forms a region of closelypacked,multiple, thin current sheets. Such a system may be subject to theion-kinetic tearing instability, and hence generate magnetic islands and hot populationsof ions associated with magnetic reconnection. Reconnection processesin this environment have important implications for local particle transport, andfor particle acceleration at reconnection sites and in turbulence. We study thiscomplex environment by means of three-dimensional hybrid simulations over longtime scales, in order to capture the evolution from linear growth of the tearinginstability to a fully developed turbulent state at late times. The final state developsfrom the highly ordered initial state via both forward and inverse cascades.Component and spectral anisotropy in the magnetic fluctuations is present whena guide field is included. The inclusion of a population of new-born interstellarpickup protons does not strongly affect these results. Finally, we conclude thatreconnection between multiple current sheets can act as an important sourceof turbulence in the outer heliosphere, with implications for energetic particleacceleration and propagation.
AU  - Burgess,D
AU  - Gingell,PW
AU  - Matteini,L
DO  - 1/38
PY  - 2016///
SN  - 1538-4357
TI  - Multiple current sheet systems in the outer heliosphere: energy release and turbulence
T2  - Astrophysical Journal
UR  - http://dx.doi.org/10.3847/0004-637X/822/1/38
UR  - http://hdl.handle.net/10044/1/45800
VL  - 822
ER  -
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