Table 3: Comparison of formation times and core masses for several disc densities with a planetesimal radius of 10 km.
Disc density Without gas drag With gas drag
[MMSN] Formation time [My] Core mass [${M_{\oplus }}$] Formation time [My] Core mass [${M_{\oplus }}$]
$\; \; 6$ 9 34 5.6 $\; \; 69$
$\; \; 7$ 7 40 4 $\; \; 80$
$\; \; 8$ 6 45 3 $\; \; 92$
$\; \; 9$ 4.8 50 2.2 104
10 4 55 1.75 115

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