Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2005-06-03
Phys.Rev. D71 (2005) 124001
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
12 pages, 3 figures
Scientific paper
10.1103/PhysRevD.71.124001
We analyze a class of exact type II solutions of the Robinson-Trautman family which contain pure radiation and (possibly) a cosmological constant. It is shown that these spacetimes exist for any sufficiently smooth initial data, and that they approach the spherically symmetric Vaidya-(anti-)de Sitter metric. We also investigate extensions of the metric, and we demonstrate that their order of smoothness is in general only finite. Some applications of the results are outlined.
Podolsky Jiri
Svitek Otakar
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