Table 1
General characteristics of the Oort cloud at t = 4 Gyr.
| D0 | D8 | I0 | I8 | |
|---|---|---|---|---|
| pop (%) | 39% | 40% | 96% | 95% |
| aiso (au) | 13 200 | 12 600 | 450 | 98 000 |
| ϵ | −1.30 | −1.27 | −2.08 | −1.7 |
Notes. For the D0, D8, I0 and I8 models are given the proportion (in percent) of comets that remains in the Oort cloud (pop), the semi-major axis threshold aisot above which the Oort cloud might be considered as isotropic and the power-law exponent ϵ of the orbital energy distribution (see text for details). All quantities are obtained at t = 4 Gyr.
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