A Pure Geometric Approach to Stellar Structure
Abstract
The present work represents a step to deal with stellar structure using a pure geometric approach. A geometric field theory is used to construct a model for a spherically symmetric configuration. The model obtained can be considered as a pure geometric one in the sense that the tensor describing the material distributions is not a phenomenological object, but a part of the geometric structure used. A general equation of state is obtained from, and not imposed on, the model. The solution obtained shows that there are different zones characterizing the configuration: a central radiation dominant zone, a probable convection zone as a physical interpretation of the singularity of the model and a corona like zone. The model may represent a type of main sequence stars. The present work shows that Einstein's geometerization scheme can be extended to gain more physical information within material distribution, with some advantages.
Cite
@article{arxiv.0906.4808,
title = {A Pure Geometric Approach to Stellar Structure},
author = {M. I. Wanas and Samah A. Ammar},
journal= {arXiv preprint arXiv:0906.4808},
year = {2011}
}
Comments
18 pages, 2 figures, revised version