  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.
