Extinction by dust in dense inhomogeneous clouds

Details Extinction by dust in dense inhomogeneous clouds Extinction by dust in dense inhomogeneous clouds

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982esasp.192...79n&link_type=abstract

In ESA Galactic and Extragalactic Infrared Spectroscopy p 79-81 (SEE N83-18593 08-88)

Computer Science

1

Depth Measurement, Interstellar Extinction, Interstellar Matter, Molecular Clouds, Zodiacal Dust, Flux (Rate), H Ii Regions, Optical Properties, Stellar Models

Scientific paper

Model calculations of the attenuation produced by a thick, inhomogeneous dust layer in front of an extended source have shown that the apparent optical depth is always lower than the true average value. This results in an apparent extinction curve flatter than the grains intrinsic one. An analysis of the heavily obscured compact HII region K 3-50 reveals that both interstellar and local dust contribute to extinguish its radiation. The local component is distributed in a very inhomogeneous way across the region and can have an extinction cross section very similar to that of interstellar dust.

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