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astro-ph2002
Continuum Equations for Stellar Dynamics
Edward A. Spiegel, Jean-Luc Thiffeault
The description of a stellar system as a continuous fluid represents a convenient first approximation to stellar dynamics, and its derivation from the kinetic theory is standard. T…
astro-ph2002
Luminosity Effects in Projected Fractals
R. Thieberger, E. A. Spiegel
We analyze examples of projected two dimensional fractals for the case where the objects studied have a Schechter luminosity function. Our results indicate that two dimensional cat…
astro-ph1998
Spotted Disks
A. Bracco, A. Provenzale, E. A. Spiegel +1
Rotating, turbulent cosmic fluids are generally pervaded by coherent structures such as vortices and magnetic flux tubes. The formation of such structures is a robust property of r…