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Multishock to Quasi-Isentropic Compression of Dense Gaseous Deuterium-Helium Mixtures up to 120 GPa: Probing the Sound Velocities Relevant to Planetary Interiors.
Li, Guo-Jun; Li, Zhi-Guo; Chen, Qi-Feng; Gu, Yun-Jun; Zhang, Wei; Liu, Lei; Geng, Hua-Yun; Wang, Zhao-Qi; Lan, Yang-Shun; Hou, Yong; Dai, Jia-Yu; Chen, Xiang-Rong.
Afiliación
  • Li GJ; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Li ZG; College of Physics, Sichuan University, Chengdu 610065, China.
  • Chen QF; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Gu YJ; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Zhang W; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Liu L; School of Science, Southwest University of Science and Technology, Mianyang 621010, China.
  • Geng HY; School of Science, Southwest University of Science and Technology, Mianyang 621010, China.
  • Wang ZQ; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Lan YS; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Hou Y; College of Physics, Sichuan University, Chengdu 610065, China.
  • Dai JY; National Key Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics, Mianyang 621900, China.
  • Chen XR; College of Physics, Sichuan University, Chengdu 610065, China.
Phys Rev Lett ; 126(7): 075701, 2021 Feb 19.
Article en En | MEDLINE | ID: mdl-33666443
Shock reverberation compression experiments on dense gaseous deuterium-helium mixtures are carried out to provide thermodynamic parameters relevant to the conditions in planetary interiors. The multishock pressures are determined up to 120 GPa and reshock temperatures to 7400 K. Furthermore, the unique compression path from shock-adiabatic to quasi-isentropic compressions enables a direct estimation of the high-pressure sound velocities in the unexplored range of 50-120 GPa. The equation of state and sound velocity provide particular dual perspectives to validate the theoretical models. Our experimental data are found to agree with several equation of state models widely used in astrophysics within the probed pressure range. The current data improve the experimental constraints on sound velocities in the Jovian insulating-to-metallic transition layer.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos