Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980afz....16..257v&link_type=abstract
(Astrofizika, vol. 16, Apr.-June 1980, p. 257-263.) Astrophysics, vol. 16, no. 2, Oct. 1980, p. 155-159. Translation.
Astronomy and Astrophysics
Astrophysics
Bipolarity, Carbon Stars, Nebulae, Optical Reflection, Polarimeters, Stellar Spectra, Cosmic Dust, Graphite, Interstellar Matter, Polarization Characteristics, Silicon Carbides
Scientific paper
A model of a homogeneous nebula in which light is scattered once by dust particles is used to interpret the polarimetric observations of the objects CRL 2688 and M1-92. These calculations make it possible to obtain information about the luminous regions of the nebulae and the properties of the dust particles in them. The polarimetric observations of CRL 2688 can be explained by means of a model consisting of spherical graphite particles with a mean dimension of .06 microns. The polarimetric observations of M1-92 can be represented by a model of spherical particles with a silicate core and ice covering. The mean dimension of such particles is approximately .18 microns. Both nebulae were found to be optically thin.
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