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Table 4

Required dust overdensities in the added optically thick regions inside a ring between 80 and 90 AU from the central star.



γ = 1 γ = 0.5 γ = 0
rc = 20 AU rc = 200 AU rc = 20 AU rc = 200 AU rc = 20 AU rc = 200 AU

Mdust,unperturb = 10-5   M 19 000 4100 370 000 3800 2.4 × 109 3700
Mdust,unperturb = 10-4   M 1900 410 37 000 380 2.4 × 108 370
Mdust,unperturb = 10-3   M 190 41 3700 38 2.4 × 107 37

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