Radio Method for the Precise Measurement of the Rotation Period of the Earth
作者： T. Gold
DOI: 10.1126/SCIENCE.157.3786.302
关键词:
摘要: Radio interferometry with independent high-precision clocks, without a high-frequency communication channel between the stations, is now possibility. It allows stations to be as far apart earth can accommodate. This then makes radio band from 10- 60-centimeters wavelength best frequency range for angular measurements, since variability of atmosphere less disturbing there than in optical band.
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harvard.edu参考文章(6)
J. R. HARRIES, K. G. MCCRACKEN, R. J. FRANCEY, A. G. FENTON, A Strong X-ray Source in the Vicinity of the Constellation Crux Nature. ,vol. 215, pp. 38- 40 ,(1967) , 10.1038/215038B0
G. J. F. MacDonald, Implications for Geophysics of the Precise Measurement of the Earth's Rotation Science. ,vol. 157, pp. 304- 305 ,(1967) , 10.1126/SCIENCE.157.3786.304
H. P. PALMER, B. ROWSON, B. ANDERSON, W. DONALDSON, G. K. MILEY, H. GENT, R. L. ADGIE, O. B. SLEE, J. H. CROWTHER, Radio Diameter Measurements with Interferometer Baselines of One Million and Two Million Wavelengths Nature. ,vol. 213, pp. 789- 790 ,(1967) , 10.1038/213789A0
P. J. S. WILLIAMS, Absorption in Radio Sources of High Brightness Temperature Nature. ,vol. 200, pp. 56- 57 ,(1963) , 10.1038/200056A0
Claude C. Bare, Interferometer Experiment with Independent Local Oscillators Science. ,vol. 157, pp. 189- 191 ,(1967) , 10.1126/SCIENCE.157.3785.189
W. A. Dent, Quasi-Stellar Sources: Variation in the Radio Emission of 3C 273 Science. ,vol. 148, pp. 1458- 1460 ,(1965) , 10.1126/SCIENCE.148.3676.1458