Evidence for changes in the microwave brightness temperature and spectrum of Uranus
Abstract
A new measurement of the microwave brightness temperature of Uranus at 13.1 cm wavelength yields an effective disk temperature of 255 + or - 18 K. Comparison with earlier measurements at nearby wavelengths reveals a doubling in brightness temperature in 14 yr. Observations at shorter wavelengths show significant changes in the shape of the microwave spectrum of the planet over the last decade.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1981
- DOI:
- 10.1086/158670
- Bibcode:
- 1981ApJ...243.1058B
- Keywords:
-
- Brightness Temperature;
- Microwave Spectra;
- Planetary Radiation;
- Uranus Atmosphere;
- Abundance;
- Line Spectra;
- Radiant Flux Density;
- URANUS;
- MICROWAVES;
- BRIGHTNESS TEMPERATURE;
- SPECTRUM;
- WAVELENGTHS;
- DATA;
- AMPLITUDE;
- TEMPERATURES;
- RADIOEMISSIONS;
- OBSERVATIONS;
- OPTICAL PROPERTIES;
- Lunar and Planetary Exploration; Uranus