Physics – Fluid Dynamics
Scientific paper
Nov 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980ncimb..60....1f&link_type=abstract
Nuovo Cimento B, Serie 11, vol. 60B, Nov. 11, 1980, p. 1-45.
Physics
Fluid Dynamics
4
Anisotropic Media, Cosmology, Galactic Evolution, Interstellar Magnetic Fields, Magnetohydrodynamic Stability, Universe, Background Radiation, Energy Dissipation, Fluid Dynamics, Isotropy, Maxwell Equation, Newton-Raphson Method, Relativistic Theory, Vorticity
Scientific paper
Magnetohydrodynamic (MHD) perturbations in flat Robertson-Walker universes were analyzed, emphasizing their effects on galaxy formation. The Newtonian approximation is used. There is no increase in the growth rates beyond those of the usual perturbed Robertson-Walker models; the MHD modes extract as much energy as they contribute. Some global properties of fully MHD Bianchi I relativistic models are analyzed including vorticity, fluid accelerations, and dissipative effects. The time dependence of perturbations of a fully MHD diagonal Bianchi I cosmology is studied, with an enhanced growth rate of the density contrast of t found which is still not exponential Jeans-type growth. This indicates that a more detailed analysis is needed if a solution to the galaxy formation problem in MHD cosmologies is to be found.
Evans Charles R.
Fennelly Alphonsus J.
No associations
LandOfFree
Magnetohydrodynamic perturbations of Robertson-Walker universes and of anisotropic Bianchi type-I universes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetohydrodynamic perturbations of Robertson-Walker universes and of anisotropic Bianchi type-I universes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetohydrodynamic perturbations of Robertson-Walker universes and of anisotropic Bianchi type-I universes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1392049