Laser-driven shock experiments in pre-compressed water: Implications for magnetic field generation in Icy Giant planets

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Laser-driven shock compression of pre-compressed water (up to 1 GPa precompression) produces high-pressure, -temperature conditions in the water inducing two optical phenomena: opacity and reflectivity in the initially transparent water. The onset of reflectivity at infrared wavelengths can be interpreted as a semi-conductor to electronic conductor transition in water and is found at pressures above {approx}130 GPa for single-shocked samples pre-compressed to 1 GPa. This electronic conduction provides an additional contribution to the conductivity required for magnetic field generation in Icy Giant planets like Uranus and Neptune.

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Lee, K; Benedetti, L R; Jeanloz, R; Celliers, P M; Eggert, J H; Hicks, D G et al. November 10, 2005.

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Laser-driven shock compression of pre-compressed water (up to 1 GPa precompression) produces high-pressure, -temperature conditions in the water inducing two optical phenomena: opacity and reflectivity in the initially transparent water. The onset of reflectivity at infrared wavelengths can be interpreted as a semi-conductor to electronic conductor transition in water and is found at pressures above {approx}130 GPa for single-shocked samples pre-compressed to 1 GPa. This electronic conduction provides an additional contribution to the conductivity required for magnetic field generation in Icy Giant planets like Uranus and Neptune.

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PDF-file: 27 pages; size: 0.6 Mbytes

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  • Journal Name: Journal of Chemical Physics, vol. 125, N/A, June 6, 2006, pp. 14701; Journal Volume: 125

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  • Report No.: UCRL-JRNL-217068
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 936465
  • Archival Resource Key: ark:/67531/metadc895732

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  • November 10, 2005

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 5, 2016, 10:56 p.m.

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Lee, K; Benedetti, L R; Jeanloz, R; Celliers, P M; Eggert, J H; Hicks, D G et al. Laser-driven shock experiments in pre-compressed water: Implications for magnetic field generation in Icy Giant planets, article, November 10, 2005; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc895732/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.