Comment on the Roberts solution for the spherically-symmetric Einstein-scalar field equations

Abstract

We critically examine the Roberts homothetic solution for the spherically symmetric Einstein-scalar field equations in double null coordinates, and show that the Roberts solution indeed solves the field equations only for one non-trivial case. We generalize this solution and discuss its relations with other known exact solutions.

3 pages, RevTeX

References in corpus (2)

• The spherically symmetric collapse of a massless scalar field
• Self-Similar Collapse of Conformally Coupled Scalar Fields

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• The Roberts-(A)dS spacetime
• Self-similar collapse of a scalar field in dilaton gravity and critical behaviour
• Brans-Dicke analogue of the Roberts geometry