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Browsing by Author "Yoshida, Z"

Browsing by Author "Yoshida, Z"

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  • Equilibrium structures in partially ionized rotating plasmas within Hall magnetohydrodynamics 
    Krishan, V; Yoshida, Z (American Institute of Physics, 2006-09)
    The formation of equilibrium structures in partially ionized rotating plasmas, consisting of electrons, ions, and neutral molecules, including the Hall effect, is studied in order to diagnose the possible velocity and the ...
  • Irregular Singularity of the Magnetorotational Instability in a Keplerian Disk 
    Furukawa, M; Yoshida, Z; Hirota, M; Krishan, V (University of Chicago Press, 2007-04)
    The center of a Keplerian disk is an irregular singularity for the eigenfunctions of magnetorotational instabilities. The system is studied using the small-radius approximation, which by no means implies that the analysis ...
  • Kolmogorov dissipation scales in weakly ionized plasmas 
    Krishan, V; Yoshida, Z (Royal Astronomical Society, 2009-06)
    In a weakly ionized plasma, the evolution of the magnetic field is described by a `generalized Ohm's law' that includes the Hall effect and the ambipolar diffusion terms. These terms introduce additional spatial and ...
  • WKB Analysis of Axisymmetric Magneto-Rotational Instability in a Thin Accretion Disk 
    Furukawa, M; Krishan, V; Hirota, M; Yoshida, Z (The Japan Society of Plasma Science and Nuclear Fusion Research, 2006)
    The temporal behavior of axisymmetric magneto-rotational instability in a thin accretion disk is analyzed via the Wentzel-Kramars-Brillouin (WKB) method. The height of the thin disk is used as a small parameter. It is found ...

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