The role of composition gradients in the evolution of uranus and neptune. Progress report, 1 January 1994--1 September 1994

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Thermal evolution models of Uranus and Neptune constructed over the last two decades overestimate the current luminosities of both planets. These models have also failed to explain the disparity between the relatively large excess luminosity of Neptune and the virtually undetectable one of Uranus. Our approach is to combine planetary evolution models with numerical simulations of convection in the presence of a stabilizing composition gradient. We have begun to adapt the global convection model to the conditions found in the interiors of Uranus and Neptune. When complete this model will calculate the mass and energy fluxes across double-diffusive interfaces in ... continued below

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2 p.

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Marley, M.S. & Glatzmaier, G. December 31, 1994.

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Description

Thermal evolution models of Uranus and Neptune constructed over the last two decades overestimate the current luminosities of both planets. These models have also failed to explain the disparity between the relatively large excess luminosity of Neptune and the virtually undetectable one of Uranus. Our approach is to combine planetary evolution models with numerical simulations of convection in the presence of a stabilizing composition gradient. We have begun to adapt the global convection model to the conditions found in the interiors of Uranus and Neptune. When complete this model will calculate the mass and energy fluxes across double-diffusive interfaces in the interior of each planet needed in the new evolutionary calculations.

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2 p.

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OSTI as DE95012959

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  • Other Information: PBD: [1994]

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  • Other: DE95012959
  • Report No.: LA-SUB--95-69
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/82333 | External Link
  • Office of Scientific & Technical Information Report Number: 82333
  • Archival Resource Key: ark:/67531/metadc779339

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  • December 31, 1994

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  • Dec. 3, 2015, 9:30 a.m.

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  • July 28, 2016, 7:25 p.m.

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Marley, M.S. & Glatzmaier, G. The role of composition gradients in the evolution of uranus and neptune. Progress report, 1 January 1994--1 September 1994, report, December 31, 1994; New Mexico. (digital.library.unt.edu/ark:/67531/metadc779339/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.