ADDENDUM: Robinson-Trautman radiating metrics with zero news and photon rockets

Details ADDENDUM: Robinson-Trautman radiating metrics with zero news and photon rockets ADDENDUM: Robinson-Trautman radiating metrics with zero news and photon rockets

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cqgra..17.3945c&link_type=abstract

Classical and Quantum Gravity, Volume 17, Issue 18, pp. 3945-3950 (2000).

Physics

5

Scientific paper

We show that a Robinson-Trautman radiating metric has zero Bondi news if and only if it is a Kinnersley metric for a point mass accelerating arbitrarily with the emission of matter of zero rest mass. This corrects a statement, which we made in a recent paper (1999 Class. Quantum Grav. 16 611-7), that the news function vanishes only for those Kinnersley metrics that have axial symmetry. It follows that none of the `photon rockets' of the Kinnersley family generate gravitational waves.

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