Table 2
For different distances (d) from the Sun, we list the relative numbers of steady-state JFCs (
) with q < d, and the relative numbers (
) of JFCs that penetrate at least once inside d during their orbital evolutions.
| d (au) | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 |
|
|
|||||
|
|
0.066 | 0.366 | 1.000 | 2.088 | 3.577 |
|
|
0.171 | 0.540 | 1.000 | 1.434 | 1.683 |
|
|
|||||
 (1) |
0.040 | 0.304 | 1.000 | 2.422 | 4.951 |
| (2) |
0.030 | 0.276 | 1.000 | 2.587 | 5.586 |
Notes. These quantities are found using purely dynamical lifetimes of the comets. We also list the steady-state numbers (), found when taking account of sublimational erosion of the nuclei, using a power-law index for the cumulative size distribution (CSD) of JFCs of 1.5 and 2.5, respectively, for the two lines. All the numbers are normalized to unity at d = 1.5 au.
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