Physics – General Physics
Scientific paper
2009-12-09
J.Cosmol.13:00,2011
Physics
General Physics
15 pages, 1 table, 4 figures; as published in the Journal of Cosmology, Vol 13, February-March 2011
Scientific paper
There are significant discrepancies between observational evidence and the hierarchical galaxy formation theory with respect to the shape of dark matter halos, the correlation between galaxy characteristics, and galaxy evolutionary history. This paper introduces a modification to the hierarchical galaxy formation theory that hypothesizes that dark matter enters into highly elliptical orbits, and is therefore, effectively redistributed during the period of galactic nuclei activity. Adding this modification, the theory more accurately predicts the observed development history of galaxies and their resulting mature state. In particular, this modification predicts that galaxies grow in size, but not in mass, at an early time (~7 to 10 billion years ago), and develop their characteristic rotation curves which, at large radius, exhibit a relatively flat shape versus the expected Keplerian decline.
Friedmann Daniel E.
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