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79. Radio emission from the moon and the nature of its surface

Published online by Cambridge University Press:  14 August 2015

V. S. Troitzky  and
S. E. Khaikin
V. S. Troitzky
Affiliation:
Gorky State University and Physical Institute of the Academy of Sciences, Moscow, U.S.S.R.
S. E. Khaikin
Affiliation:
Gorky State University and Physical Institute of the Academy of Sciences, Moscow, U.S.S.R.

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A theoretical study of the integral radio emission of the moon, measured at the wave-length of 3·2 cm. (Zelinskaja and Troitzky[1]; Kajdanovsky, Turusbekov and Khaikin[2]), was carried out at the Gorky radio astronomical station ‘Zimenky’ and at the Physical Institute of the Academy of Sciences of the U.S.S.R. The following expression for the average radio temperature of the entire lunar disk, as a function of the lunar phase, Ωt, was obtained (Troitzky, 1954) [3]: Here tan ξ = δ/(1 + δ) and δ = β/κ, where β is the attenuation coefficient of the thermal wave, κ the power attenuation coefficient of the radio wave. Further, Tm = 374°K. is the temperature of the subsolar point, Tn is the temperature at the lunar midnight, Θ = Tm – Tn and k0 is the reflexion coefficient of radio waves for vertical incidence (k0 ≈ 0–1). The numerical coefficients in equation (1) were obtained as a result of averaging the Fresnel reflexion coefficients over the whole disk. The degree of polarization of the total radio emission was calculated and was found to be about 4 %.

Type
Part VI: Meteors and Planets
Information
Symposium - International Astronomical Union , Volume 4: Radio Astronomy , 1957 , pp. 406 - 407
Copyright
Copyright © Cambridge University Press 1957 

References

1. Zelinskaja, M. R. and Troitzky, V. S. Publications of the 5th Conference on Cosmogony , p. 99, 1956.Google Scholar
2. Kajdanovsky, N. L., Turusbekov, M. T. and Khaikin, S. E. Ibid. p. 347, 1956.Google Scholar
3. Troitzky, V. S. A.J. U.S.S.R. 31, 6, 511, 1954.Google Scholar
4. Troitzky, V. S. and Zelinskaja, M. R. A.J. U.S.S.R. (in print).Google Scholar
5. Piddington, J. H. and Minnett, H. C. Aust. J. Sci. Res. A , 2, 63, 1949.Google Scholar
6. Troitzky, V. S. Publications of the 5th Conference on Cosmogony , p. 325, 1956.Google Scholar
7. Budnikova, N. A. Bulletin of the Leningrad University, Math. Phys. Chem. Series no. 8, 71, 1953.Google Scholar
8. Borissova, A. N. Ibid. series no. 8, 89, 1953.Google Scholar