Temperature of cometary dust

Details Temperature of cometary dust Temperature of cometary dust

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988em%26p...41..197h&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 41, May 1988, p. 197-200.

Astronomy and Astrophysics

Astronomy

1

Comets, Cosmic Dust, Silicates, Temperature Distribution, Curve Fitting, Thermal Radiation

Scientific paper

The variation of dust temperature with heliocentric distance for a comet is calculated using the optical constants of an astronomically important silicate. The silicate, described by Drane (1985), is assumed to be similar to cometary dust. The temperatures of cometary dust grains are determined by the energy balance between the absorbed sunlight and emitted thermal radiation, and equilibrium temperatures of dust grains for different radii and heliocentric distances are compared. Deviations between computed and observed temperatures are attributed to variations in the chemical composition of the ablated grains.

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