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Table 2
W/R, ϕ ratio, grain density, and accretion time used in the calculations above you use 67P/C-G; see also Fig. 1.
| Estimated W/R | Contemporary values(e) | Accretion time post | |||
|---|---|---|---|---|---|
| Initial W/R | ϕ | Grain density (g cm−3) | ϕ | CAI (Myr)(f) | |
| CI | 1.2(a) (mass) | 0.81 | 2.42 | 0.35 | 3.0 |
| CI-67P | – | 0.36(b) | – | – | 3.0 |
| CM-Min | 0.3(c) (vol) | 0.22 | 3.26 | 0.15 | 3.0 |
| CM-Max | 0.6(c) (vol) | 0.36 | 2.74 | 0.37 | 3.0 |
| CV-Min | 0.09(d) (mass) | 0.26 | 3.5 | 0.036 | 3.0 |
| CV-Max | 1.1(c) (vol) | 0.51 | 3.5 | 0.197 | 2.5 |
References. (a) Lodders (2003). (b) Rotundi et al. (2015). (c) Brearley (2006). (d) Alexander (2019). (e) Macke et al. (2011). (f)Doyle et al. (2015); Desch et al. (2018).
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