Robinson-Trautman radiating metrics with zero news and photon rockets

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By this: publisher
In this Subject: Nuclear Physics
By this author: Cornish F.H.J.

Author: Cornish F.H.J.

Source: Classical and Quantum Gravity, Volume 17, Number 18, 2000 , pp. 3945-3950(6)

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Abstract:

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 ( [A article="0264-9381/16/2/022"] 1999 Class.?Quantum Grav.?16 611-7 [/A] ), 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.

Language: English

Document Type: Miscellaneous

Publication date: 2000-01-01