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Abstract: A linear stability analysis of ionized discs with a temperature gradient andan external axial magnetic field is presented. It is shown that bothhydromagnetic and thermomagnetic effects can lead to the amplification of wavesand make discs unstable. The conditions under which the instabilities grow arefound and the characteristic growth rate is calculated. The regimes at whichboth the thermomagnetic and magnetorotational instabilities can operate arediscussed.



Autor: Edward Liverts, Michael Mond, Vadim Urpin

Fuente: https://arxiv.org/







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