Published July 3, 2020 | Version v1
Dataset Open

The librations, tides, and interior structure of Io

Authors/Creators

  • 1. Royal Observatory of Belgium
  • 2. Lunar and Planetary Laboratory, University of Arizona, Tucson, USA
  • 3. Department of Earth and Planetary Sciences, University of California Santa Cruz, California, USA

Description

The librations, tides, and interior structure of Io 

Tim Van Hoolst, Rose-Marie Baland, Antony Trinh, Marie Yseboodt, and Francis Nimmo

For each of the 574 lines of the file Iomodels_results, corresponding to different interior structure models of Io, values of the following quantities are given:

  • Thickness of the crust [km]
  • Thickness of the magma ocean or asthenosphere [km]
  • Radius of the core [km]
  • Density of the mantle (equal to that of the crust and asthenosphere of magma ocean) [kg/m3]
  • Density of the core [kg/m3]
  • Polar flattening of the surface (defined as the relative difference between the mean equatorial and polar radii)
  • Polar flattening of the outer surface of the magma ocean or asthenosphere
  • Polar flattening of the outer surface of the mantle
  • Polar flattening of the core
  • Equatorial flattening of the surface (defined as the relative difference between the largest and smallest equatorial radii)
  • Equatorial flattening of the outer surface of the magma ocean or asthenosphere
  • Equatorial flattening of the outer surface of the mantle
  • Equatorial flattening of the core
  • Rigidity of the crust [GPa]
  • Rigidity of the asthenosphere [GPa]
  • Rigidity of the mantle [GPa]
  • Rigidity of the core [GPa]
  • Love number of the model with asthenosphere and liquid core
  • Libration amplitude of the model with asthenosphere and liquid core, without deformation [m]
  • Libration amplitude of the model with asthenosphere and liquid core, with deformation [m]
  • Love number of the model with magma ocean
  • Period of the out-of-phase eigenmode, without deformation [days]
  • Period of the out-of-phase eigenmode, with deformation [days]
  • Period of the in-phase eigenmode, without deformation [days]
  • Period of the in-phase eigenmode, with deformation [days]
  • Libration amplitude of the model with magma ocean, without deformation [m]
  • Libration amplitude of the model with magma ocean, with deformation [m]
  • Libration amplitude of the mantle below the magma ocean, without deformation [m]
  • Libration amplitude of the mantle below the magma ocean, with deformation [m]

 

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