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Table A.1

Table of physical parameters of the stellar remnant and dust shell found from DUSTY modelling.

Teff (K) R (R) rin (AU) rout (pc) Tdin$\[\mathrm{T}_{d}^{in}\]$ (K) amin (μm) amax (μm) q p
4500 661 208 20 300 0.30 1.00 2 −1.1
Grain type Composition Reference
astro-silicates 30% Draine & Lee (1984)
FeO 10% Henning et al. (1995)
Al2O3 10% Begemann et al. (1997)
Metallic Fe 25% Pollack et al. (1994)
Henning & Stognienko (1996)
Mg0.9Fe0.1S 25% Begemann et al. (1994)

Notes. R is the stellar radius, rin,out is the inner and outer radius of the dust shell, a is the grain size, q is the power law index of the grain size distribution, and p is the power law index of the density distribution.

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