Tidal instability as the source for Io's magnetic signature

Geophysical Research Letters

Volumn 25, Issue 5, 1998, Pages 603-606

  Kerswell, Richard R ^a   Malkus, Willem V R ^b  

^a UNIVERSITY OF BRISTOL   (United Kingdom)

^b MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ENERGY DISSIPATION; MAGNETIC FIELD EFFECTS; MOON; ROTATION; MAGNETIC FIELDS; SATELLITES;

HYDROMAGNETIC INSTABILITIES; IO; TIDAL INSTABILITY;

ASTRONOMY; MAGNETISM;

HYDROMAGNETISM; MAGNETIC SIGNATURE;

JUPITER, IO;

GALILEO SPACECRAFT; HYDROMAGNETIC INSTABILITY; INTERNAL SOURCE; MAGNETIC SIGNATURES; MOLTEN CORE; REMANENT MAGNETIZATION; ROTATIONAL ENERGY; TIDAL HEATING;

EID: 0032029611     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/98GL00237     Document Type: Article

References (28)

1. Aldridge, K., Seyed-Mahmoud, B., Henderson, G. and van Wijngaarden, W., Elliptical instability of the Earth's fluid core, Phys. Earth. Planet. Int. in press (1997)
2. Anderson, J.D., Sjogren, W.L. & Schubert, G., Galileo gravity results and the internal structure of Io, Science 272, 709-712 (1996)
3. Bayly, B. J., Three dimensional instability of elliptical flow, Phys. Rev. Lett. 57, 2160-2163 (1986)
4. Craik, A.D.D., The stability of unbounded two- and three-dimensional flows subject to body forces: some exact solutions, J. Fluid Mech. 198, 275-292 (1989)
5. Gans, R.F., On the hydromagnetic precession in a cylinder J. Fluid Mech. 45, 111-130 (1970)
6. Gledzer, E.B. & Ponomarev, V.M., Instability of bounded flows with elliptical streamlines, J. Fluid Mech. 240, 1-30 (1992)
7. Kerswell, R.R., Elliptical instabilities of stratified, hydromagnetic waves, Geophys. Astrophys. Fluid Dynam. 71, 105-143 (1993a)
8. Kerswell, R.R., The instability of precessing flow, Geophys. Astrophys. Fluid Dynam. 72, 107-144 (1993b)
9. Kerswell, R.R., Tidal excitation of hydromagnetic waves and their damping in the Earth J. Fluid Mech. 274, 219-241 (1994)
10. Kerswell, R.R., Upper bounds on the energy dissipation in turbulent precession, J. Fluid Mech. 321, 335-370 (1996)
11. Khurana, K.K., Kivelson, M.G. & Russell, C.T., Interaction of Io with its torus: does Io have an internal magnetic field? Geophys. Res. Lett. 24, 2391-2394 (1997)
12. Kivelson, M.G., Khurana, K.K., Walker, R.J., Russell, C.T., Linker, J.A., Southwood, D.J. & Polanskey, C., A magnetic signature at Io: initial report from the Galileo Magnetometer, Science 273, 337-340 (1996a)
13. Kivelson, M.G., Khurana, K.K., Walker, R.J., Warnecke, J., Russell, C.T., Linker, J.A., Southwood, D.J. & Polanskey, C., Io's interaction with the plasma torus: Galileo Magnetometer Report, Science 274, 396-398 (1996b)
14. Kivelson, M.G., Khurana, K.K., Russell, C.T., Walker, R.J., Warnecke, J., Coroniti, F.V., Polanskey, C., Southwood, D.J. & Schubert, G., Discovery of Ganymede magnetic field by the Galileo spacecraft, Nature 384, 537-541 (1996c)
15. Kivelson, M.G., Khurana, K.K., Joy, S., Russell, C.T., Southwood, D.J., Walker, R.J. & Polanskey, C., Europa's magnetic signature: report from Galileo's first pass on December 19, 1996, Science, 276, 1239-1241 (1997)
16. Malhotra, R., Tidal origin of the Laplace resonance and the resurfacing of Ganymede, Icarus 94, 399-412 (1991)
17. Malkus, W.V.R., Precession of the Earth as the cause of geomagnetism, Science 160, 259-264 (1968)
18. Malkus, W.V.R., An experimental study of global instabilities due to tidal (elliptical) distortion of a rotating elastic cylinder, Geophys. Astrophys. Fluid Dynam. 48, 123-134 (1989)
19. Peale, S.J., Cassen, P., Reynolds, R.T., Melting of Io by tidal dissipation, Science 203, 892-894 (1979)
20. Pierrehumbert, R.T., Universal short-wave instability of 2-dimensional eddies in an inviscid fluid, Phys. Rev. Lett. 57, 2157-2159 (1986)
21. Sarson, G.R., Jones, C.A., Zhang, K. & Schubert, G., Magneto-convection dynamos of Io and Ganymede, Science 276, 1106-1108 (1997)
22. Schubert, G., Zhang, K., Kivelson, M.G. & Anderson, J.D., Magnetic fields and internal structures of Ganymede and Io, Nature 384, 544-545 (1996)
23. Stevenson, D.J., When Galileo met Ganymede, Nature 384, 511-512 (1996)
24. Tittemore, W.C., Chaotic motion of Europa and Ganymede and the Ganymede-Callisto dichotomy, Science 250, 263-267 (1990)
25. Vanyo, J.P., A geodynamo powered by luni-solar precession, Geophys. Astrophys. Fluid Dyn. 59, 209-234 (1991)
26. Vladimirov, V.A. & Tarasov, V., Resonance instability of the flows with closed streamlines, Laminar-Turbulent Transition; IUTAM Symposium Novosibirsk ed. V.V. Kozlov, Springer (1985)
27. Waleffe, F.A., On the three-dimensional instability of a strained vortex, Phys. Fluids. A 2, 76-80 (1990)
28. Wienbruch, U. & Spohn, T., A self sustained magnetic field on Io? Planet. Space Sci. 43, 1045-1047 (1995)