Ultrarelativistic Black Hole Formation

被引:46
|
作者
East, William E. [1 ]
Pretorius, Frans [1 ]
机构
[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
基金
美国国家科学基金会;
关键词
DIMENSIONS; COLLISIONS; HIERARCHY; SPEED;
D O I
10.1103/PhysRevLett.110.101101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study the head-on collision of fluid particles well within the kinetic energy dominated regime (gamma = 8 to 12) by numerically solving the Einstein-hydrodynamic equations. We find that the threshold for black hole formation is lower (by a factor of a few) than simple hoop conjecture estimates, and, moreover, near this threshold two distinct apparent horizons first form postcollision and then merge. We argue that this can be understood in terms of a gravitational focusing effect. The gravitational radiation reaches luminosities of 0: 014 c(5)/G, carrying 16 +/- 2% of the total energy. DOI: 10.1103/PhysRevLett.110.101101
引用
收藏
页数:5
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