Abstract
We investigate criteria under which one may construct the energy tensor of a null radiation field from an algebraically special vacuum metric. The field bears the same relationship to the original metric as does Vaidya's to Schwarzschild's. As an example we generate a class of null radiation fields from a class of vacuum metrics without symmetry discovered by Robinson and Robinson.
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Supported in part by the National Science Foundation (GP-8868, GP-20033, and GU-1598), Air Force Office of Scientific Research under Grant AF-AFOSR-903-67 and by the National Aeronautics and Space Administration under NASA Grant No. NGL 44-004-001.
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Hughston, L.P. Generalized Vaidya metrics. Int J Theor Phys 4, 267–271 (1971). https://doi.org/10.1007/BF00674279
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DOI: https://doi.org/10.1007/BF00674279