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Thermal Radio Emission From the Major Planets
Author(s) -
Kellermann K. I.
Publication year - 1970
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs005i002p00487
Subject(s) - planet , wavelength , brightness temperature , millimeter , saturn , jupiter (rocket family) , atmosphere (unit) , brightness , thermal , physics , infrared , astrobiology , astronomy , astrophysics , atmospheric sciences , optics , meteorology , space shuttle
Measurements of the thermal radio emission from all major planets have been reported at millimeter and centimeter wavelengths, and from Jupiter and Saturn at decimeter wavelengths as well. The measured brightness temperatures deduced from these measurements generally exceeds the expected equilibrium temperature calculated from solar heating. The highest temperatures are generally those measured at the longer wavelengths, which are thought to refer to the deeper, presumably hotter layers in the atmosphere. At least for Jupiter and Saturn the high flux measured at infrared wavelengths implies an internal source of heat comparable with solar heating.