Flat rotation curves according to the fragmentation/shear flow model of galaxy formation |
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| Authors: | Wilbur K Brown |
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| Institution: | (1) Los Alamos National Laboratory, Los Alamos, New Mexico, USA |
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| Abstract: | Initial conditions are derived from the fragmentation/shear flow model of galaxy formation and are used as input to the viscous action presumed to begin as soon as a galactic disk forms. A simple differential equation is found to describe the turbulent viscous evolution of a flat disk. Solutions to this equation produce rotation curves that closely resemble those observed in spiral and elliptical galaxies. For spirals, by using the mass distributions derived from the rotation curves and from Seiden's theory of star formation, exponential luminosity profiles are produced.Los Alamos National Laboratory is operated by the University of California for the United States Department of Energy under contract W-7405-ENG-36. |
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