The 1-mm brightness temperature of Titan

Details The 1-mm brightness temperature of Titan The 1-mm brightness temperature of Titan

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981icar...45..618r&link_type=abstract

Icarus, vol. 45, Mar. 1981, p. 618-623.

Computer Science

9

Brightness Temperature, Microwave Emission, Millimeter Waves, Satellite Surfaces, Titan, Black Body Radiation, Greenhouse Effect, Radio Telescopes, Thermodynamic Equilibrium, Saturn, Satellites, Titan, Brightness Temperature, Wavelengths, Dust, Telescopic Observations, Surface, Radiation, Temperatures, Atmosphere, Greenhouse Effect, Opacity, Gases, Clouds, Models, Infrared, Composition

Scientific paper

Titan has been observed with the 5-m Hale telescope at an effective wavelength of 1 mm. Adopting a value of 2700 km for the radius of Titan, a brightness temperature of 86 + or - 12 K is found at 1 mm. By a comparison of the results with previous measurements at longer wavelengths, it is concluded that the satellite surface is the source of the 1-mm radiation. Since the measured brightness temperature is close to the equilibrium temperature of a blackbody at the distance of Saturn, it is believed there is no significant greenhouse effect on Titan.

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