Z
Zhiwei Ma
Researcher at Chinese Academy of Sciences
Publications - 115
Citations - 4472
Zhiwei Ma is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Magnetic reconnection & Magnetohydrodynamics. The author has an hindex of 31, co-authored 112 publications receiving 4122 citations. Previous affiliations of Zhiwei Ma include Zhejiang University & University of Alaska Fairbanks.
Papers
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Geospace Environmental Modeling (GEM) magnetic reconnection challenge
Joachim Birn,James Drake,Michael Shay,Barrett Rogers,Richard E. Denton,Michael Hesse,M. Kuznetsova,Zhiwei Ma,Amitava Bhattacharjee,Antonius Otto,P. L. Pritchett +10 more
TL;DR: In this paper, a simple Harris sheet configuration with a specified set of initial conditions, including a finite amplitude, magnetic island perturbation to trigger the dynamics of magnetic reconnection is studied.
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Hall magnetohydrodynamic reconnection: The Geospace Environment Modeling challenge
Zhiwei Ma,Amitava Bhattacharjee +1 more
TL;DR: In this paper, the peak reconnection rate in the quasi-saturated regime is controlled dominantly by ions and has a weak dependence on the resistivity, which provides the mechanism for breaking field lines.
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Mach cones in a coulomb lattice and a dusty plasma
TL;DR: Mach cones, or V-shaped disturbances created by supersonic objects, have been detected in a two-dimensional Coulomb crystal as discussed by the authors, with particles arranged in a hexagonal lattice in a horizontal plane.
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Fast impulsive reconnection and current sheet intensification due to electron pressure gradients in semi-collisional plasmas
Zhiwei Ma,Amitava Bhattacharjee +1 more
TL;DR: In this article, a numerical simulation of forced reconnection and current sheet growth due to inward boundary flows in semi-collisional plasmas is presented, and contrasted with the results of an incompressible resistive MHD simulation in the high-Lundquist-number regime.
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In situ evidence for the structure of the magnetic null in a 3D reconnection event in the Earth's magnetotail
Chijie Xiao,Xiaogang Wang,Z. Pu,Hengcan Zhao,J. X. Wang,Zhiwei Ma,S. Y. Fu,Margaret G. Kivelson,Z. X. Liu,Qiugang Zong,Karl-Heinz Glassmeier,A. Balogh,A. Korth,Henri Rème,C. P. Escoubet +14 more
TL;DR: In situ evidence for the structure of the magnetic null in a 3D reconnection event in the Earth's magnetotail has been found in this paper, showing that the magnetosphere has a magnetic null.