Table 2
Grid cell statistics for the resolutions used.
| Resolution | Low | Medium | High |
|
|
|||
| s | 35 | 50 | 60 |
| θ cells | 37 | 53 | 63 |
| φ cells | 113 | 161 | 193 |
| r cells | 69 | 98 | 118 |
| Cells per grid | 288 489 | 836 234 | 1 392 768 |
| Total cells | 576 978 | 1 672 468 | 2 785 536 |
| Interpolation points | 62 928 | 120 736 | 171 808 |
| Δθ | 5.58 ×10-2 | 3.86 ×10-2 | 3.24 ×10-2 |
| Minimum Δφ at r = 2M | 6.01 ×10-2 | 4.21 ×10-2 | 3.50 ×10-2 |
| Maximum Δφ at r = 2M | 1.12 ×10-1 | 7.84 ×10-2 | 6.56 ×10-2 |
| Minimum Δr | 5.87 ×10-2 | 4.08 ×10-2 | 3.37 ×10-2 |
| Maximum Δr | 2.77 | 1.96 | 1.63 |
Notes. Points removed by the overlapping grid routines are still included in these counts. These statistics are given for the case when a = 0. In this case, the inner grid radius is 1.4M, and the outer grid radius is 50M. For spins a ≠ 0, the inner radius changes as in Table 1, thereby changing the radial spacing, but the numbers of cells in all dimensions and the angular resolutions remain fixed.
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