2002/10/17 by Ll. Bel, Bel, Ll.
Medicine · Physics and Astronomy · #Atomic and Subatomic Physics Research #Boron Compounds in Chemistry #Nuclear Physics and Applications #gr-qc
paper · pdf · doi:10.48550/arxiv.gr-qc/0210057
14 pages, Latex
arxiv created 2002/10/17 · arxiv updated 2009/11/30
We reconsider the problem of modelling static spherically symmetric perfect fluid configurations with an equation of state from a point of view of that requires the use of the concept of principal transform of a 3-dimensional Riemannian metric. We discuss from this new point of view the meaning of those familiar quantities that we call density, pressure and geometry in a relativistic context. This is not simple semantics. To prove it we apply the new ideas to recalculate the maximum mass that a massive neutron core can have. This limit is found to be of the order of 3.8 M_\odot substantially larger than the Oppenheimer and Volkoff limit.