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Table 3

Parameters of the best fitted model for M2-9 and Mz3 (Chesneau et al. 2007).

Parameters M2-9 Mz3

Teff (K) 15 000 35 000
Luminosity (L) 2500 10 000
Distance (kpc)  ~1.2  ~1.4

Inclination (°) 74  ±  1 74  ±  3
best PA (°) –2  ±  2 5  ±  5
Inner radius (AU) 15  ±  1 9  ±  1
Outer radius (AU) 900 500
α 2.0  ±  0.1 2.4  ±  0.1
β 0.9  ±  0.1 1.02  ±  0.02
h100   AU (AU) 36  ±  2 17  ±  2
ρgrain (g   cm-3) 2.7 2.7
Dust mass (M) 1.5 × 10-5  ±  5 × 10-6 9 × 10-6  ±  2 × 10-6

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