Modeling of Interstellar Extinction with Composite Dust Grains

Details Modeling of Interstellar Extinction with Composite Dust Grains Modeling of Interstellar Extinction with Composite Dust Grains

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26at...21...41d&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 21, Issue 1, p.41-44

Astronomy and Astrophysics

Astrophysics

Scientific paper

A model of interstellar dust must satisfy two conditions: dust grains have to be of the reasonable structure and chemical composition and explain basic observations. The latter are the interstellar extinction law and the depletion of interstellar elements. In this work, a new model of composite dust grains is considered. To calculate cross-sections of such particles the exact theory of light scattering by multi-layered grains is used. The results of modeling are compared with observations of the interstellar extinction toward the stars ‘ Oph and θ1 C Ori.

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