New results on the dynamics of critical collapse
arXiv:2307.04372 · doi:10.1088/1674-1137/ad361c
Abstract
We study the dynamics of the critical collapse of a spherically symmetric scalar field. Approximate analytic expressions for the metric functions and matter field in the large-radius region are obtained. In the central region, owing to the boundary conditions, the equation of motion for the scalar field is reduced to the flat-spacetime form.
8 pages, 5 figures