Sound velocities in dense hydrogen and the interior of Jupiter

Thomas S. Duffy, Willem L. Vos, Chang Sheng Zha, Russell J. Hemley, Ho Kwang Mao

Research output: Contribution to journalArticle

61 Scopus citations

Abstract

Sound velocities in fluid and crystalline hydrogen were measured under pressure to 24 gigapascals by Brillouin spectroscopy in the diamond anvil cell. The results provide constraints on the intermolecular interactions of dense hydrogen and are used to construct an intermolecular potential consistent with all available data. Fluid perturbation theory calculations with the potential indicate that sound velocities in hydrogen at conditions of the molecular layer of the Jovian planets are lower than previously believed. Jovian models consistent with the present results remain discrepant with recent free oscillation spectra of the planet by 15 percent. The effect of changing interior temperatures, the metallic phase transition depth, and the fraction of high atomic number material on Jovian oscillation frequencies is also investigated with the Brillouin equation of state. The present data place strong constraints on sound velocities in the Jovian molecular layer and provide an improved basis for interpreting possible Jovian oscillations.

Original languageEnglish (US)
Pages (from-to)1590-1593
Number of pages4
JournalScience
Volume263
Issue number5153
DOIs
StatePublished - 1994

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Sound velocities in dense hydrogen and the interior of Jupiter'. Together they form a unique fingerprint.

  • Cite this

    Duffy, T. S., Vos, W. L., Zha, C. S., Hemley, R. J., & Mao, H. K. (1994). Sound velocities in dense hydrogen and the interior of Jupiter. Science, 263(5153), 1590-1593. https://doi.org/10.1126/science.263.5153.1590