Bondi mass in terms of the Penrose conformal factor

Details Bondi mass in terms of the Penrose conformal factor Bondi mass in terms of the Penrose conformal factor

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cqgra..17.4397t&link_type=abstract

Classical and Quantum Gravity, Volume 17, Issue 21, pp. 4397-4408 (2000).

Physics

13

Scientific paper

Within the framework of the Penrose conformal approach to asymptotical flatness we find minimal conditions on the Ricci tensor of the physical metric tilde g which guarantee that the Bondi mass and momentum are well defined. The energy-momentum vector, the Bondi news functions and the energy loss formula are expressed in terms of the Penrose conformal factor. An approximate Bondi-Sachs form of the metric tilde g is constructed. The Robinson-Trautman metrics are considered as an example.

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