Physics – Plasma Physics
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.8601c&link_type=abstract
American Astronomical Society, 191st AAS Meeting, #86.01; Bulletin of the American Astronomical Society, Vol. 29, p.1352
Physics
Plasma Physics
Scientific paper
We examine the gravitational instability of two interpenetrating, barotropic fluids interacting only through gravity. Previous work on the problem (Fridman and Polyachenko, 1984) indicates that two fluids with initial relative motion are unstable to small perturbations at all wavenumbers in some range of Mach numbers. We expand upon these results by exploiting the analogy between this problem and the two-stream instability of plasma physics, and demonstrate the existence of negative energy modes from the indefiniteness of the energy functional. This allows for explosive nonlinear growth even in situations for which the linear theory predicts absolute stability. We further investigate the effects of negative energy modes in a non-conservative situation where one of the fluids is radiatively damped. reference: "Physics of Gravitating Systems I and II," by A.M. Fridman & V.L. Polyachenko, Springer-Verlag, 1984.
Casti A.
Morrison Philip
Spiegel Ed
No associations
LandOfFree
Gravitational Instability of Interpenetrating Fluids 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 Gravitational Instability of Interpenetrating Fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Instability of Interpenetrating Fluids will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1176115