On the mixing rules for interstellar inhomogeneous grains
نویسندگان
چکیده
We present the computation of effective refractive coefficients for inhomogeneous two-component grains with 3 kinds of inclusions with m incl = 3.0 + 4.0i, 2.0 + 1.0i, 2.5 + 0.0001i and a matrix with m m = 1.33 + 0.01i for 11 volume fractions of inclusions from 0% to 50%. The coefficients of extinction for these grains have been computed using a discrete dipole approximation (DDA). Computation of the extinction by the same method for grains composed of a matrix material with randomly embedded inclusions has been carried out for different volume fractions of inclusions. A comparison of extinction coefficients obtained for both models of grain materials allows to choose the best mixing rule for a mixture.
منابع مشابه
On the mixing rules for astrophysical inhomogeneous grains
We present the computation of effective refractive coefficients for inhomogeneous two-component grains with 3 kinds of inclusions with mincl = 3.0 + 4.0i, 2.0 + 1.0i, 2.5 + 0.0001i and a matrix with mm = 1.33 + 0.01i for 11 volume fractions of inclusions from 0% to 50% and wavelengths λ=0.5, 1.0, 2.0 and 5.0 μm. The coefficients of extinction for these grains have been computed using a discrete...
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