A comparison study of the vertical and magnetic shear instabilities in accretion discs

Details A comparison study of the vertical and magnetic shear instabilities in accretion discs A comparison study of the vertical and magnetic shear instabilities in accretion discs

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...404..397u&link_type=abstract

Astronomy and Astrophysics, v.404, p.397-403 (2003)

Astronomy and Astrophysics

Astrophysics

10

Accretion: Accretion Discs, Hydrodynamics, Instabilities, Turbulence

Scientific paper

We consider the stability properties of discs rotating with the angular velocity dependent on both the radial and vertical coordinates. A vertical dependence of Omega destabilizes the disc at any particular form of this dependence. The growth rate of the vertical shear instability is calculated and compared with that of the magnetic shear instability. We find that the vertical shear instability grows faster for a wide range of parameters.

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