论文标题
黑贝壳和裸壳
Black shells and naked shells
论文作者
论文摘要
我们从地平线动力学的角度研究了薄灰尘壳的崩溃。我们确定时间和空间在互换其角色的临界表面，并使用被困的表面的形式主义研究其性质。我们显示了与准局部范围的存在相关的边缘外部捕获的表面。避免地平线形成的特定外壳配置解释为裸壳。
We study the collapse of a thin dust shell from the point of view of the horizon dynamics. We identify the critical surfaces at which time and space coordinates interchange their roles and investigate their properties by using the formalism of trapped surfaces. We show the existence of marginally outer trapped surfaces that are associated with the presence of quasi-local horizons. A particular shell configuration that avoids the formation of horizons is interpreted as naked shell.
