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Updated: Jul 12, 2026
07:38
Characterization of Biological Absorption Spectra Spanning the Visible to the Short-Wave Infrared
Published on: January 10, 2025
Jupiter's Spectrum Between 12 and 24 Micrometers
Science (New York, N.Y.)
|October 1, 1976
Summary
Spectroscopic analysis of Jupiter
Area of Science:
- Planetary Science
- Atmospheric Physics
- Infrared Spectroscopy
Background:
- Understanding Jupiter's atmospheric temperature structure is crucial for planetary science.
- Previous ground-based and airborne measurements provided limited data on Jupiter's thermal radiation.
Purpose of the Study:
- To infer the Jovian temperature structure in the 0.1 to 0.4 atmosphere pressure region.
- To analyze Jupiter's thermal radiation spectrum between 12 and 24 micrometers.
Main Methods:
- Utilized spectroscopic measurements of Jupiter's thermal radiation.
- Employed a spectral resolution of 4 reciprocal centimeters.
- Compared results with previous ground-based and airborne measurements, and Pioneer 10 data.
Main Results:
- Brightness temperature spectrum showed good agreement with prior measurements.
- Calculated integrated flux was 20% lower than Pioneer 10 measurements.
- Detected the Q branch of acetylene's v(5) band, enabling a mixing ratio estimate.
Conclusions:
- The study refines Jupiter's temperature structure and atmospheric composition.
- Discrepancies with Pioneer 10 data highlight the need for further investigation.
- Acetylene's presence provides insights into Jovian atmospheric chemistry.
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