Physics
Scientific paper
Mar 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...204..322d&link_type=abstract
Astrophysical Journal, vol. 204, Mar. 1, 1976, pt. 1, p. 322-329.
Physics
24
Astronomical Models, Cosmology, Electromagnetic Fields, Field Theory (Physics), Relativity, Einstein Equations, Hubble Diagram, Ideal Fluids, Kinematics, Mathematical Models, Maxwell Equation
Scientific paper
The 'parallel-propagation' solution of the Einstein-Maxwell equations found by Tariq and Tupper (1974) is generalized to represent the solution of the field equations for a perfect-fluid distribution both with and without an electromagnetic field. All the solutions admit a three-parameter group of isometries of Bianchi type VI and form a subclass of the Bianchi type VI models found by Ellis and MacCallum (1969). The perfect-fluid models in this subclass automatically satisfy the Hawking-Penrose strong energy condition, while those models which represent perfect fluid with electromagnetism have a current four-vector which is either spacelike or zero. Properties of these models are discussed and are compared with those of another subclass found by Ellis and MacCallum.
Dunn K. A.
Tupper Brian O. J.
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