Uranus: microwave images
Observations of Uranus at wavelengths of 2 and 6 centimeters with the Very Large Array were made in 1980 and 1981. The resulting maps of brightness temperature show a subsolar symmetry at 2 centimeters but a near-polar symmetry at 6 centimeters. The 6-centimeter maps show an increase in temperature...
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American Association for the Advancement of Science
1984
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ftcaltechauth:oai:authors.library.caltech.edu:54246 2023-05-15T17:39:47+02:00 Uranus: microwave images Jaffe, Walter J. Berge, Glenn L. Owen, Tobias Caldwell, John 1984-02-23 https://authors.library.caltech.edu/54246/ https://resolver.caltech.edu/CaltechAUTHORS:20150130-121531674 unknown American Association for the Advancement of Science Jaffe, Walter J. and Berge, Glenn L. and Owen, Tobias and Caldwell, John (1984) Uranus: microwave images. Science, 225 (4662). pp. 619-621. ISSN 0036-8075. doi:10.1126/science.11541997. https://resolver.caltech.edu/CaltechAUTHORS:20150130-121531674 <https://resolver.caltech.edu/CaltechAUTHORS:20150130-121531674> Article PeerReviewed 1984 ftcaltechauth https://doi.org/10.1126/science.11541997 2021-11-11T19:02:30Z Observations of Uranus at wavelengths of 2 and 6 centimeters with the Very Large Array were made in 1980 and 1981. The resulting maps of brightness temperature show a subsolar symmetry at 2 centimeters but a near-polar symmetry at 6 centimeters. The 6-centimeter maps show an increase in temperature from equator to pole with some evidence for a warm "ring" surrounding the north pole. The disk-average temperatures (147 +/- 5 K and 230 +/- 6 K at 2 and 6 centimeters, respectively) are distinctly lower than recently reported values; these results suggest that the secular increase in temperature reported during the last 15 years has been reversed. The variations in brightness temperature probably reflect variations in ammonia abundance in the planet's atmosphere, but the mechanism driving these variations is still unclear. Article in Journal/Newspaper North Pole Caltech Authors (California Institute of Technology) North Pole Science 225 4662 619 621 |
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Caltech Authors (California Institute of Technology) |
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Observations of Uranus at wavelengths of 2 and 6 centimeters with the Very Large Array were made in 1980 and 1981. The resulting maps of brightness temperature show a subsolar symmetry at 2 centimeters but a near-polar symmetry at 6 centimeters. The 6-centimeter maps show an increase in temperature from equator to pole with some evidence for a warm "ring" surrounding the north pole. The disk-average temperatures (147 +/- 5 K and 230 +/- 6 K at 2 and 6 centimeters, respectively) are distinctly lower than recently reported values; these results suggest that the secular increase in temperature reported during the last 15 years has been reversed. The variations in brightness temperature probably reflect variations in ammonia abundance in the planet's atmosphere, but the mechanism driving these variations is still unclear. |
format |
Article in Journal/Newspaper |
author |
Jaffe, Walter J. Berge, Glenn L. Owen, Tobias Caldwell, John |
spellingShingle |
Jaffe, Walter J. Berge, Glenn L. Owen, Tobias Caldwell, John Uranus: microwave images |
author_facet |
Jaffe, Walter J. Berge, Glenn L. Owen, Tobias Caldwell, John |
author_sort |
Jaffe, Walter J. |
title |
Uranus: microwave images |
title_short |
Uranus: microwave images |
title_full |
Uranus: microwave images |
title_fullStr |
Uranus: microwave images |
title_full_unstemmed |
Uranus: microwave images |
title_sort |
uranus: microwave images |
publisher |
American Association for the Advancement of Science |
publishDate |
1984 |
url |
https://authors.library.caltech.edu/54246/ https://resolver.caltech.edu/CaltechAUTHORS:20150130-121531674 |
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North Pole |
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North Pole |
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North Pole |
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North Pole |
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Jaffe, Walter J. and Berge, Glenn L. and Owen, Tobias and Caldwell, John (1984) Uranus: microwave images. Science, 225 (4662). pp. 619-621. ISSN 0036-8075. doi:10.1126/science.11541997. https://resolver.caltech.edu/CaltechAUTHORS:20150130-121531674 <https://resolver.caltech.edu/CaltechAUTHORS:20150130-121531674> |
op_doi |
https://doi.org/10.1126/science.11541997 |
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Science |
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225 |
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4662 |
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619 |
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621 |
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1766140560465199104 |