Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-12-12
Phys.Rev.D79:064005,2009
Physics
High Energy Physics
High Energy Physics - Theory
Added Comments on a caveat of three dimensions and the critical behavior (p.26); Added References; Accepted in PRD
Scientific paper
10.1103/PhysRevD.79.064005
We study the gravitational collapse problem of rotating shells in three-dimensional Einstein gravity with and without a cosmological constant. Taking the exterior and interior metrics to be those of stationary metrics with asymptotically constant curvature, we solve the equations of motion for the shells from the Darmois-Israel junction conditions in the "co-rotating" frame. We study various collapse scenarios with "arbitrary" angular momentum for a variety of geometric configurations, including anti-de Sitter, de Sitter, and flat spaces. We find that the collapsing shells can form a BTZ black hole, a three-dimensional Kerr-dS spacetime, and an horizonless geometry of point masses under certain initial conditions. For pressureless dust shells, the curvature singularity is "not" formed due to the angular momentum barrier near the origin. However when the shell pressure is nonvanishing, we find that for all types of shells with polytropic-type equations of state (including the perfect fluid and the generalized Chaplygin gas), collapse to a naked singularity is "possible" under generic initial conditions. We conclude that in three dimensions angular momentum does not in general guard against violation of cosmic censorship.
Mann Robert B.
Oh John J.
Park Mu-In
No associations
LandOfFree
The Role of Angular Momentum and Cosmic Censorship in the (2+1)-Dimensional Rotating Shell Collapse does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Role of Angular Momentum and Cosmic Censorship in the (2+1)-Dimensional Rotating Shell Collapse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Role of Angular Momentum and Cosmic Censorship in the (2+1)-Dimensional Rotating Shell Collapse will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-609480