Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....88..194h&link_type=abstract
Astronomy and Astrophysics, vol. 88, no. 1-2, Aug. 1980, p. 194-202.
Astronomy and Astrophysics
Astrophysics
96
Abundance, Astronomical Models, Cosmic Dust, Interstellar Matter, Particle Size Distribution, Alignment, Circular Polarization, Grains, Interstellar Extinction, Linear Polarization, Shapes
Scientific paper
It is shown, on the basis of a core-mantle model of interstellar grains, that the cosmic abundance constraints, the polarization to extinction ratio, and the wavelength dependences of extinction, linear polarization and circular polarization are all linked by the question of the strength of the alignment mechanism. One of the implications of our model is that, in order to obtain the best agreement with the principal observational features, some enhancement of the Davis-Greenstein mechanism must be invoked.
Greenberg Mayo J.
Hong Seung Sae
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