Magneto-gravitational instability of a rotating and finitely-conducting fluid
type: Item
instance of: scholarly article
title: Magneto-gravitational instability of a rotating and finitely-conducting fluid
zbMATH Open document ID: 0611.76068
DOI: 10.1007/BF00644182
author: R. K. Chhajlani
author: Raj Kamal Sanghvi
published in: Astrophysics and Space Science
publication date: 1986-01-01T00:00:00Z
review text: The magneto-gravitational instability problem is studied for the flow through a rotating porous medium of a viscous electrically conducting fluid, when it is put into a uniform magnetic field, perpendicular to the flow direction. Finite ion Larmor radius effects are retained. The linearized problem is solved for the wave propagation, the direction of the magnetic field may be arbitrarily directed with respect to the axis of rotation of the system. It is observed that the corrections coming from all considered effects (beyond the simplest situation) do not change the instability criterion due to Jeans. The different stabilizing or destabilizing effects are discussed.
Mathematics Subject Classification ID: 76E25
Mathematics Subject Classification ID: 76U05
Mathematics Subject Classification ID: 76S05
zbMATH DE Number: 3988963
zbMATH Keywords: magneto-gravitational instability
zbMATH Keywords: rotating porous medium
zbMATH Keywords: viscous electrically conducting fluid
zbMATH Keywords: uniform magnetic field
zbMATH Keywords: Finite ion Larmor radius
zbMATH Keywords: linearized problem
zbMATH Keywords: wave propagation
zbMATH Keywords: instability criterion
reviewed by: Iván Abonyi
MaRDI profile type: Publication
cites work: Q5518219
cites work: Magnetohydrodynamic Equations for Finite Larmor Radius
cites work: The gravitational instability of flow through porous medium for some systems of astrophysical interest
full work available at URL: https://doi.org/10.1007/bf00644182
OpenAlex ID: W2043101123
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description: scientific article; zbMATH DE number 3988963