title: Gravitational collapse on the brane: a no-go theorem.
abstract: We investigate how braneworld gravity affects gravitational collapse and black hole formation by studying Oppenheimer-Snyder-like collapse on a Randall-Sundrum-type brane. Without making any assumptions about the bulk, we prove a no-go theorem: the exterior spacetime on the brane cannot be static, which is in stark contrast with general relativity. We also consider the role of Kaluza-Klein energy density in collapse, using a toy model.
authors.affiliation: Relativity and Cosmology Group, School of Computer Science and Mathematics, Portsmouth University, Portsmouth PO1 2EG, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Bruni
authors.forename: C
authors.initials: C
authors.lastname: Germani
authors.forename: R
authors.initials: R
authors.lastname: Maartens