Horizons in 2+1-dimensional collapse of particles

Pramana

Puneet Khetarpal¹  Dieter Brill1²  Vijay Kaul² 

[1] Rensselaer Polytechnic Institute, Troy, NY 12180, USA$$;Department of Physics, University of Maryland, College Park, MD 20782, USA$$

关键词: Black holes;    gravitational collapse;    horizon.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

A simple, geometrical construction is given for three-dimensional spacetimes with negative cosmological constant that contain two particles colliding head-on. Depending on parameters like particle masses and distance, the combined geometry will be that of a particle, or of a black hole. In the black hole case the horizon is calculated. It is found that the horizon typically starts at a point and spreads into a closed curve with corners, which propagate along spacelike caustics and disappear as the horizon passes the particles.

【 授权许可】

Unknown