Unformatted text preview: Below this regime we see that we have first, at around 10 26 kg, the region we have described where Hydrogen becomes metallic in nature, and then at around 10 28 kg we have a region of electron degeneracy. We have marked on this diagram the positions of the giant planets (and sub-giants). We see that Neptune and Uranus are nowhere near the regim where metallic hydrogen is formed. We see also that Jupiter and Saturn are inside the curve, since they are not pure Hydrogen and the extra mass of their cores makes them smaller than a pure hydrogen bodan a pure hydrogen body. There is an added difference in that this curve is for 0K - if the temperature is also taken into account it is possible that Saturn moves out of the metallization region. Thus, it is not entirely sure that metallic hydrogen is found inside Saturn, as it undoubtedly is in Jupiter. The cross-sections above assume it is, but there is a large scope for uncertainty in these models....
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- Fall '10
- Astronomy, Planet, Metallic hydrogen, Pure hydrogen