Description
Title: Brane stars and black holes
Abstract: An effective action approach to supergravity solutions sourced by slightly separated fundamental strings and NS5-branes reveals a wealth of information about the structure and formation of BPS and near-BPS black holes, through the study of ultracompact BPS bound states of these brane constituents. The BPS solutions determine a near-BPS effective action that yields chaotic dynamics and a Schwarzian-like collective mode.