The thermal radiation of Saturn and its rings

G. H. Rieke

doi:10.1016/0019-1035(75)90142-6

The thermal radiation of Saturn and its rings

G. H. Rieke

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Infrared observations of Saturn from 5 to 40 μm are described. There is intense limb brightening at 12.35 μm over the southern polar cap. The C ring is anomalously bright at 10 and 20 μm and has bluer (hotter) colours than the A and B rings. The ring spectra have been extrapolated beyond 40 μm and subtracted from low-resolution far-infrared measurements to show that the far-infrared spectrum of the disk of Saturn is qualitatively similar to that of Jupiter and that Saturn radiates 2.5 ± 0.6 times the energy it absorbs from the Sun.

Original language	English (US)
Pages (from-to)	37-44
Number of pages	8
Journal	Icarus
Volume	26
Issue number	1
DOIs	https://doi.org/10.1016/0019-1035(75)90142-6
State	Published - Sep 1975

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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T1 - The thermal radiation of Saturn and its rings

AU - Rieke, G. H.

PY - 1975/9

Y1 - 1975/9

N2 - Infrared observations of Saturn from 5 to 40 μm are described. There is intense limb brightening at 12.35 μm over the southern polar cap. The C ring is anomalously bright at 10 and 20 μm and has bluer (hotter) colours than the A and B rings. The ring spectra have been extrapolated beyond 40 μm and subtracted from low-resolution far-infrared measurements to show that the far-infrared spectrum of the disk of Saturn is qualitatively similar to that of Jupiter and that Saturn radiates 2.5 ± 0.6 times the energy it absorbs from the Sun.

AB - Infrared observations of Saturn from 5 to 40 μm are described. There is intense limb brightening at 12.35 μm over the southern polar cap. The C ring is anomalously bright at 10 and 20 μm and has bluer (hotter) colours than the A and B rings. The ring spectra have been extrapolated beyond 40 μm and subtracted from low-resolution far-infrared measurements to show that the far-infrared spectrum of the disk of Saturn is qualitatively similar to that of Jupiter and that Saturn radiates 2.5 ± 0.6 times the energy it absorbs from the Sun.

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DO - 10.1016/0019-1035(75)90142-6

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JO - Icarus

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The thermal radiation of Saturn and its rings

Abstract

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