STUDY OF ABSORPTION AND REFRACTION CHANGES IN RADIATION EMANATING FROM JUPITER AND RADIO STARS.
Abstract
Jupiter's radio noise has been monitored by a continuously operated sweep-frequency interferometer. The properties of the system have been studied in estimating the possible errors induced by refraction in the earth's ionosphere; the method for ray path computations which allows for refraction error estimation is described. Precise measurements of the frequency dependence of the Faraday effect upon elliptically polarized radio emissions permit the determination of the main polarization axis at the source. The coincidence of the polarization plane and Jupiter's equator supports a tide model of Jupiter's ionosphere. Jupiter's longitude and the position of its moon Io define the probability of radio noise emissions, their frequency-time behavior and to some degree their polarization character and dependence on solar cycle. These phenomena are explained by assuming a sole radio-noise source fixed at the surface of the planet and large tidal amplitudes in Jupiter's ionosphere. Energy of isotropic radio-source propagates between surface and ionosphere and escapes through a tidal density minimum which forms a 'window' in the ionosphere. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0630112
Entities
People
- B. W. Reinisch
- C. L. Bennett Jr.
- D. N. Gaunt
- K. Bibl
Organizations
- Lowell Technological Institute