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Table 3 Order of magnitude estimates of the magnetic Reynolds number Rm, the imposed Elsasser number Λ i , and the Lorentz to Coriolis force ratio as estimated by \(\Lambda _{d}^{*}\) for planetary cores with active dynamos

From: The competition between Lorentz and Coriolis forces in planetary dynamos

 

Mercury

Earth

Ganymede

Jupiter

Saturn

Ice Giants

Rm

75

103

500

105

104

102

Λ i

10−3

102

10−1

102

100

10−2

\(\Lambda _{d}^{*}\)

10−4

100

10−3

10−1

10−2

10−3