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Table 6

Comparison of our model/results with available model/results from other workers.

Computational Particle shape Inclusions/size Specifications of
method and composition/ model/method

Our work DDA Oblate Inclusion size in terms All composite grain
(2010) of number of dipoles models with volume
across the diameter fraction of inclusions
Inclusion compositions viz. 10%, 20%, and 30%
are graphite/ice & were studied
vacuum (for porosity)

Lee & Rayleigh Oblate Ice, Size: smaller Core-mantle grains
Draine (1985) approximation than wavelength

Jones (1988) EMAa Spheres Voids to model Porosity 25% and 50%
Hollow spheres porous grains

Greenberg & EMAa Spheres Organic refractory Inclusion of CHON
Hage (1990) material, Ice & particles to model
voids cometary grains

Ossenkopf EMAa Ellipsoids Al2O3, MgO, MgS 10% inclusion of Al2O3,
et al. (1992) Fe3O4, Fe2O3, & MgO, and MgS
amorphous carbon

Henning & DDA Oblate and prolate Inclusion size smaller Two fractions of
Stognienko (1993) The observed polarization than wavelength and inclusions
across the 10 μm inclusion composition Fsilicates/Fgraphites
feature led them consists of graphite, viz. 1.3 & 0.8
to conclude that the ice, voids, &
silicate particles amorphous carbon
are oblates
rather than prolates

O’Donnell EMAa Oblates and prolates Inclusion composition Core-mantle particles with
(1994) They found that consists of silicate-amorphous ice
prolate grains shift amorphous carbon, and amorphous carbon
the 10 μm & 18 μm glassy carbon,
features too so as tholins, & voids
to be consistent
with the observed data

Min et al. DDA Gaussian random spheres Inclusion consists of Silicate grains
(2007) Gaussian random distribution of with Mg component
field particles amorphous carbon, >0.9
hollow spheres amorphous silicate

Voshchinnikov & Layereda Spherical grains Inclusion composition Volume fraction of inclusions
Henning (2008) spheres consists of amorphous range from 0.2
carbon and amorphous to 0.9

Li et al. Multi-layereda Concentric Inclusion composition Mass ratio of amorphous
(2008) sphere model spherical layers consists of amorphous carbon v/s amorphous silicates
carbon & porous/voids to be ~0.7



It is a mixture of two materials, there are no separate inclusions, size is not applicable.

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