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Weakly-interacting particles in general relativity: A numerical study of the general-relativistic Boltzmann equation

Thesis/Dissertation ·
OSTI ID:6134738
The ADM formalism of general relativity is used to write the Einstein-Boltzmann coupled system of equations. The sources of the gravitational field are taken to be represented by ordinary matter described by a perfect fluid approximation, together with either massless or massive weakly-interacting particles, for which a kinetic-theory description is used. In order to solve the equations numerically a one-dimensional, spherically-symmetric model is adopted. A computer code representing the resulting equations was constructed; the specialized numerical methods used in the code are described. The code was subjected to extensive testing so that its reliability and efficiency are well established. The results from these tests are presented and discussed.
Research Organization:
Texas Univ., Austin, TX (USA)
OSTI ID:
6134738
Country of Publication:
United States
Language:
English