CREATOR: XV Version 3.10a  Rev: 12/29/94 (PNG patch 1.2)  Quality = 100, Smoothing = 0
Solid lines : r1 = 10–3 g cm3   and 3 different crust emissivities in input

Dashed line : r1 = 3x10–3 g cm3   and crust  emissivity as in b

r1 = gas density at the  interface gas/crust