Magnetorotational Instability in Weakly Ionised, Stratified Accretion Discs
نویسندگان
چکیده
منابع مشابه
Magnetorotational instability in weakly ionised, stratified accretion discs
We present a linear analysis of the vertical structure and growth of the magnetorotational instability in weakly ionised, stratified accretion discs. The method includes the effects of the magnetic coupling, the conductivity regime of the fluid and the strength of the magnetic field, which is initially vertical. The conductivity is treated as a tensor and assumed constant with height. The Hall ...
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MHD in protostellar discs is modified by the Hall current when the ambipolar diffusion approximation breaks down. Here I examine the Balbus-Hawley (magnetorotational) instability of a weak, vertical magnetic field within a weakly-ionised disc. Vertical stratification is neglected, and a linear analysis is undertaken for the case that the wave vector of the perturbation is parallel to the magnet...
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ژورنال
عنوان ژورنال: Astrophysics and Space Science
سال: 2004
ISSN: 0004-640X
DOI: 10.1023/b:astr.0000045049.76937.48