Fluid Core Size of Mars from Detection of the Solar Tide

@article{Yoder2003FluidCS,
  title={Fluid Core Size of Mars from Detection of the Solar Tide},
  author={Charles Finney Yoder and Alex S. Konopliv and Dah‐Ning Yuan and Erland Myles Standish and William M. Folkner},
  journal={Science},
  year={2003},
  volume={300},
  pages={299 - 303}
}
The solar tidal deformation of Mars, measured by itsk 2 potential Love number, has been obtained from an analysis of Mars Global Surveyor radio tracking. The observedk 2 of 0.153 ± 0.017 is large enough to rule out a solid iron core and so indicates that at least the outer part of the core is liquid. The inferred core radius is between 1520 and 1840 kilometers and is independent of many interior properties, although partial melt of the mantle is one factor that could reduce core size. Ice-cap… 
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