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arXiv · 1605.08277

Galileon Radiation from a Spherical Collapsing Shell

Javier Martin-Garcia·Miguel A. Vazquez-Mozo
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Abstract

Galileon radiation in the collapse of a thin spherical shell of matter is analyzed. In the framework of a cubic Galileon theory, we compute the field profile produced at large distances by a short collapse, finding that the radiated field has two peaks traveling ahead of light fronts. The total energy radiated during the collapse follows a power law scaling with the shell's physical width and results from two competing effects: a Vainshtein suppression of the emission and an enhancement due to the thinness of the shell.

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Javier Martin-Garcia, Miguel A. Vazquez-Mozo. 2016-05-26. Galileon Radiation from a Spherical Collapsing Shell. https://doi.org/10.1007/jhep01(2017)070

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