Long description

The figure shows a graph. The horizontal axis is labelled ‘separation in au’ and ranges from 0 to 300 in increments of 50 units. The vertical axis is labelled ‘mass in M_Jup’ and ranges from 0 to 100 in increments of 10 units. In the graph, from approximately (30, 8), two curves are drawn. One curve is increases slowly towards the right, with decreasing gradient, and ends at (300, 46). The region just above this curve is labelled ‘Toomre criterion fulfilled’, and the region below this curve is labelled ‘not fulfilled’. The other curve increases rapidly with increasing gradient, and ends at (80, 100). The region just right of this curve is labelled ‘cooling criterion fulfilled’, and the region left of this curve is labelled ‘not fulfilled’. The region bounded by the two curves and the axes is shaded in red, and the remaining part is shaded in green. The central portion of the green region is labelled ‘allowed range for formation’.