Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998larm.confe.131k&link_type=abstract
"IX Latin American Regional IAU Meeting, "Focal Points in Latin American Astronomy", held in Tonantzintla, Mexico, Nov 9-13, 199
Astronomy and Astrophysics
Astronomy
Scientific paper
We present simulations of two protogalaxies that approach each other and as a result of the tidal interaction, intrinsic angular momentum is generated. The protogalaxies are n = 3/2 polytropes with different values of the total energy of the system. The initial distance betweeen the protogalaxies is 40 R, where R is the radius of the protogalaxy and the initial conditions are such that the minimum distance between the protogalaxies is 2R, 4R, 6R or 12R. We calculate the evolution of the ratio of thermal to gravitational energy, of rotational to gravitational energy and of the intrinsic angular momentum (J/M). We obtain values of (J/M) comparable with those observed in galaxies when the minimum distance between the protogalaxies is small and when the kinetic energy of the system is less than 1/4 of its potential energy. We describe the flux flow that in some cases includes non radial oscillations.
Cervantes-Cota Jorge L.
Klapp Jaime
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