Model parameter space for 6 different radii: R₀ = 3000,5000,7500,12 000,20 000,30 000 AU. The hatched area represents clouds that are stable against gravitational collapse, while the colours code for different values of ϵ for clouds in the unstable zone. The ϵ = 1 separating line between hatched and coloured areas is defined in Eq. (5). Each run number links to the corresponding publicly available dataset. (Interactive image with hyperlinks available in the PDF version.)