Finding apparent horizons in dynamic 3D numerical spacetimes

被引:20
作者
Anninos, P
Camarda, K
Libson, J
Masso, J
Seidel, E
Suen, WM
机构
[1] Univ Illinois, Natl Ctr Supercomp Applicat, Champaign, IL 61820 USA
[2] Univ Illes Balears, Dept Fis, E-07071 Palma de Mallorca, Spain
[3] Washington Univ, Dept Phys, McDonnell Ctr Space Sci, St Louis, MO 63130 USA
[4] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[5] Chinese Univ Hong Kong, Dept Phys, Shatin, Peoples R China
[6] Max Planck Inst Gravitat Phys, D-14473 Potsdam, Germany
[7] Univ Illinois, Dept Astron, Urbana, IL 61801 USA
来源
PHYSICAL REVIEW D | 1998年 / 58卷 / 02期
关键词
D O I
10.1103/PhysRevD.58.024003
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have developed a general method for finding apparent horizons in 3D numerical relativity. Instead of solving for the partial differential equation describing the location of the apparent horizons, we expand the closed 2D surfaces in terms of symmetric trace-free tensors and solve for the expansion coefficients using a minimization procedure. Our method is applied to a number of different spacetimes, including numerically constructed spacetimes containing highly distorted axisymmetric black holes in spherical coordinates, and 3D rotating, and colliding black holes in Cartesian coordinates. [S0556-2821(98)01414-3].
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页数:12
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