Relativistic collapse of axion stars
arXiv:1802.10085 · doi:10.1016/j.physletb.2018.07.063
Abstract
We study the gravitational collapse of an axion field in null coordinates, assuming spherical symmetry. Compared with previous studies, we use a simpler numerical scheme which can run, for relevant parameters, in a few minutes or less on a desktop computer. We use it to accurately determine the domains of parameter space in which the axion field forms a black hole, an axion star or a relativistic Bosenova.
7 pages, 5 figures, pdflatex