Effect of the size distribution on the thermal emission from cometary dust

Details Effect of the size distribution on the thermal emission from cometary dust Effect of the size distribution on the thermal emission from cometary dust

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981esasp.174...67h&link_type=abstract

In ESA The Comet Halley Dust and Gas Environ. p 67-75 (SEE N82-23095 13-91)

Mathematics

Comet Tails, Dust, Emission Spectra, Infrared Radiation, Interplanetary Dust, Particle Size Distribution, Thermal Emission, Distribution Functions, Luminous Intensity, Mathematical Models, Silicates, Temperature Measurement

Scientific paper

The IR thermal emission from cometary dust is analyzed by two size distribution functions, Sekanina A and a modified Sekanina Miller distribution. The resulting thermal emission spectra are illustrated for heliocentric distances 0.15 to 1.6 AU. The Sekania A distribution does not predict the observed heliocentric variation in the flux ratio I (4.8 micron) I (3.5 micron) for bright comets. A size distribution intermediate between the two presented is a better representation of the dust in recently observed comets.

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