On asymptotically flat solutions of Einstein's equations periodic in time II. Spacetimes with scalar-field sources

Abstract

We extend the work in our earlier article [4] to show that time-periodic, asymptotically-flat solutions of the Einstein equations analytic at scri, whose source is one of a range of scalar-field models, are necessarily stationary. We also show that, for some of these scalar-field sources, in stationary, asymptotically-flat solutions analytic at scri, the scalar field necessarily inherits the symmetry. To prove these results we investigate miscellaneous properties of massless and conformal scalar fields coupled to gravity, in particular Bondi mass and its loss.

29 pages, published in Class. Quant. Grav. Replaced. Typos corrected, version which appeared in Class. Quant.Grav

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• Scalar fields, energy conditions, and traversable wormholes
• Exact Einstein-scalar field solutions for formation of black holes in a cosmological setting
• General Relativistic Scalar Field Models in the Large
• On existence of mini-boson stars
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• A comment on positive mass for scalar field sources