On polarization by dust in the mid-infrared

Details On polarization by dust in the mid-infrared On polarization by dust in the mid-infrared

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....75..236t&link_type=abstract

Astronomy and Astrophysics, vol. 75, no. 1-2, May 1979, p. 236-239.

Astronomy and Astrophysics

Astronomy

4

Cosmic Dust, Infrared Astronomy, Polarization Characteristics, Density Distribution, H Ii Regions, Interstellar Extinction, Optical Polarization, Radiation Absorption

Scientific paper

A model of mid-infrared polarization by dust including both absorption and emission is described. An immediate result is that the contribution to the percentage polarization by the dust in emission does not depend upon its column density if it is optically thin. Therefore, emission effects should be considered even in sources suspected to be heavily absorbed. Further, although a number of simplifying assumptions are included, this work suggests that an accurate model to describe a specific source will be extensive, detailed, and probably ambiguous. In the case of H II regions, a partial solution would be to observe the polarization of the infrared emission lines.

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