Plasma instability at the inner edge of the accretion disk, 2

Details Plasma instability at the inner edge of the accretion disk, 2 Plasma instability at the inner edge of the accretion disk, 2

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993japa...14..167t&link_type=abstract

Journal of Astrophysics and Astronomy (ISSN 0250-6335), vol. 14, no. 3-4, p. 167-179

Computer Science

Numerical Analysis

Accretion Disks, Magnetohydrodynamic Flow, Magnetohydrodynamic Stability, Eigenvalues, Kelvin-Helmholtz Instability, Magnetosonic Resonance, Numerical Analysis, Perturbation Theory

Scientific paper

A two-dimensional instability analysis for a magneto-keplerian disk flow around a compact object is presented here. Using the eigenvalue technique, linearly coupled perturbed equations have been numerically solved within the local approximation. It is concluded that Kelvin-Helmholtz, magnetosonic (fast and slow) and resistive electromagnetic modes exist. However, only the magnetosonic mode can destabilize the disk structure. Further, we discuss the properties of different modes as a function of disk parameters and plot the eigenmode structures for different physical quantities.

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