Dynamics of a self-gravitating neutron source

Details Dynamics of a self-gravitating neutron source Dynamics of a self-gravitating neutron source

2008-12-13

arxiv.org/abs/0812.2508v3

JCAP 1003:017,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, 6 figures, JHEP style, published version

Scientific paper

10.1088/1475-7516/2010/03/017

We examine the dynamics of a self--gravitating magnetized neutron gas as a source of a Bianchi I spacetime described by the Kasner metric. The set of Einstein-Maxwell field equations can be expressed as a dynamical system in a 4-dimensional phase space. Numerical solutions of this system reveal the emergence of a point--like singularity as the final evolution state for a large class of physically motivated initial conditions. Besides the theoretical interest of studying this source in a fully general relativistic context, the resulting idealized model could be helpful in understanding the collapse of local volume elements of a neutron gas in the critical conditions that would prevail in the center of a compact object.

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