The brightness distribution over the moon's disk at 6 CM wavelength

Details The brightness distribution over the moon's disk at 6 CM wavelength The brightness distribution over the moon's disk at 6 CM wavelength

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976moon...15..317h&link_type=abstract

The Moon, vol. 15, June-July 1976, p. 317-323.

Physics

1

Brightness Temperature, Lunar Maps, Lunar Temperature, Surface Temperature, Temperature Distribution, Angular Resolution, Electromagnetic Wave Transmission, Lunar Limb, Microwave Frequencies, Telescopes, Thermal Emission

Scientific paper

A map of the moon was obtained at 6-cm wavelength with a 100-m telescope. The high angular and favorable temperature resolution allowed an interpretation of the observed brightness distribution. The dominant feature of the brightness distribution is the center-to-limb variation, particularly noticeable in the direction of the poles. The exponent of the commonly adopted cosine law describing the temperature variation across the lunar disk is determined as approximately 0.4. The north-south variation of the lunar surface temperature is estimated to be 30%; the depth of penetration of 6-cm electromagnetic waves is found to be about 17 m.

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