@MISC{Evans_chapter4, author = {Myron W. Evans and H. Eckardt}, title = {Chapter 4 Orbital Dynamics in Terms of Spacetime Angular Momentum}, year = {} }

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Abstract

Planar orbital theory is developed from the concept of the conserved angular momentum of spacetime in generally covariant Einstein Cartan Evans (ECE) Theory. It is shown that spacetime angular momentum is sufficient to describe all known planar orbits without using the non-relativistic Newtonian concept of attraction between two massive objects. The theory is applied to the dy-namics of galaxies. Different types of planar orbits observed in galaxies can be described by the same conserved spacetime angular momentum. Example given are the relativistic Keplerian and logarithmic spiral orbits of a whirlpool galaxy. Spacetime angular momentum is defined by a volume integration over spacetime torsion and is a concept unique to ECE theory.