@article{Hellinger:2018:2041-8213/aabc06,
author = {Hellinger, P and Verdini, A and Landi, S and Franci, L and Matteini, L},
doi = {2041-8213/aabc06},
journal = {ASTROPHYSICAL JOURNAL LETTERS},
title = {von Karman-Howarth Equation for Hall Magnetohydrodynamics: Hybrid Simulations},
url = {http://dx.doi.org/10.3847/2041-8213/aabc06},
volume = {857},
year = {2018}
}

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TY  - JOUR
AB  - A dynamical vectorial equation for homogeneous incompressible Hall-magnetohydrodynamic (MHD) turbulence together with the exact scaling law for third-order correlation tensors, analogous to that for the incompressible MHD, is rederived and applied to the results of two-dimensional hybrid simulations of plasma turbulence. At large (MHD) scales the simulations exhibit a clear inertial range where the MHD dynamic law is valid. In the sub-ion range the cascade continues via the Hall term, but the dynamic law derived in the framework of incompressible Hall-MHD equations is obtained only in a low plasma beta simulation. For a higher beta plasma the cascade rate decreases in the sub-ion range and the change becomes more pronounced as the plasma beta increases. This break in the cascade flux can be ascribed to nonthermal (kinetic) features or to others terms in the dynamical equation that are not included in the Hall-MHD incompressible approximation.
AU  - Hellinger,P
AU  - Verdini,A
AU  - Landi,S
AU  - Franci,L
AU  - Matteini,L
DO  - 2041-8213/aabc06
PY  - 2018///
SN  - 2041-8205
TI  - von Karman-Howarth Equation for Hall Magnetohydrodynamics: Hybrid Simulations
T2  - ASTROPHYSICAL JOURNAL LETTERS
UR  - http://dx.doi.org/10.3847/2041-8213/aabc06
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000430632600004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/62055
VL  - 857
ER  - 

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