A size distribution of silicate grains in Eta Carinae

Details A size distribution of silicate grains in Eta Carinae A size distribution of silicate grains in Eta Carinae

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.189..299c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 189, Oct. 1979, p. 299-304.

Astronomy and Astrophysics

Astronomy

9

Cosmic Dust, Light Scattering, Linear Polarization, Particle Size Distribution, Silicates, Granular Materials, Interstellar Extinction, Mie Scattering, Optical Polarization, Scattering Cross Sections

Scientific paper

Assuming a geometry for Eta Carinae a size distribution for silicate grains has been determined to account for the observed optical linear polarization. The size distribution is given as n(a) = exp [-(a/0.022)0.85] and grains of size 0.15 μm contribute most to the scattering at optical wavelengths. Using the same distribution we find that maximum emission at 10 μm can be expected from grains of size 0.1 μm.

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