High-growth-rate magnetohydrodynamic instability in differentially rotating compressible flow

Mradul Sharma
2010 Physical Review E  
The transport of angular momentum in the outward direction is the fundamental requirement for accretion to proceed in an accretion disc. This objective can be achieved if the accretion flow is turbulent. Instabilities are one of the sources for the turbulence. We study a differentially rotating compressive flow in the presence of non vanishing radial and azimuthal magnetic field and demonstrate the occurrence of a high growth rate instability. This instability operates in a region where
more » ... energy density exceeds the rotational energy density.
doi:10.1103/physreve.82.037302 pmid:21230216 fatcat:kmkr5nzaufaw5im3kzj45sehum