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Interior Models of Icy Satellites and Prospects of Investigation

Published online by Cambridge University Press:  06 April 2010

Frank Sohl
Frank Sohl*
Affiliation:
Institute of Planetary Research, German Aerospace Center, Rutherfordstr.2, 12489, Berlin-Adlershof, Germany email: Frank.Sohl@dlr.de
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Abstract

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The state of knowledge about the structure and composition of icy satellite interiors has been significantly extended by combining direct measurements from spacecraft, laboratory experiments, and theoretical modeling. Interior models of icy bodies will certainly benefit from future missions to the outer solar system, providing new and improved constraints on the surface chemistry, bulk composition and degree of internal differentiation, possible heterogeneities in radial mass distribution, the presence and extent of liquid reservoirs, and the amount of tidal heating for each target body. Here we summarize geophysical constraints on the interior structure and composition of selected Jovian and Saturnian icy satellites and investigate conditions under which potentially habitable liquid water reservoirs could be maintained. Future geophysical exploration which includes gravitational and magnetic field sounding from low-altitude orbit and close flyby, combined with altimetry data and in-situ monitoring of tidally-induced surface distortion and time-variable magnetic fields, would impose important constraints on the interiors of outer planet satellites.

Keywords

astrobiologyconductionconvectionequation of stateicy satellitesinteriorsIoEuropaGanymedeCallistoEnceladusRheaTitanTriton
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 113 - 120
Copyright
Copyright © International Astronomical Union 2010

References

Anderson, J. D., et al. 1996a, Science, 272, 709CrossRefGoogle Scholar
Anderson, J. D., et al. 1996b, Nature, 384, 541CrossRefGoogle Scholar
Anderson, J. D., et al. 2001a, J. Geophys. Res., 106, 32,963CrossRefGoogle Scholar
Anderson, J. D., et al. 2001b, Icarus, 153, 15CrossRefGoogle Scholar
Anderson, J. D. & Schubert, G. 2007, Geophys. Res. Lett., 34, L02202Google Scholar
Atreya, S. K., et al. 2006, Planet. Space Sci., 54, 1174CrossRefGoogle Scholar
Backes, H., et al. 2005, Science, 308, 992CrossRefGoogle Scholar
Blanc, M., et al. 2009, Exp. Astron., 23, 849CrossRefGoogle Scholar
Castillo-Rogez, J. 2006, J. Geophys. Res., 111, E11005Google Scholar
Castillo-Rogez, J., et al. 2007, Icarus, 190, 179CrossRefGoogle Scholar
Collins, G. C. & Goodman, J. C. 2007, Icarus, 189, 72CrossRefGoogle Scholar
Consolmagno, G. J. & Lewis, J. S. 1978, Icarus, 34, 280CrossRefGoogle Scholar
Coradini, A., et al. 1995, Surv. Geophys., 16, 533CrossRefGoogle Scholar
Coustenis, A., et al. 2009, Exp. Astron., 23, 893CrossRefGoogle Scholar
Dougherty, M., et al. 2006, Science, 311, 1406CrossRefGoogle Scholar
Grasset, O., et al. 2000, Planet. Space Sci., 48, 617CrossRefGoogle Scholar
Grindrod, P. M., et al. 2008, Icarus, 197, 137CrossRefGoogle Scholar
Grott, M., et al. 2007, Icarus, 191, 203CrossRefGoogle Scholar
Hussmann, H., Sohl, F., & Spohn, T. 2006, Icarus, 185, 258CrossRefGoogle Scholar
Hussmann, H., Sotin, C., & Lunine, J. I. 2007, in Spohn, T. (ed.), Treatise on Geophysics 10 (Amsterdam: Elsevier), p. 509CrossRefGoogle Scholar
Iess, L., et al. 2007, Icarus, 190, 585CrossRefGoogle Scholar
Jacobson, R. A., et al. 2006, Astron. J., 132, 2520CrossRefGoogle Scholar
Johnson, T. V. 2005, Space Sci. Rev., 116, 401CrossRefGoogle Scholar
Kivelson, M. G., et al. 1996, Nature, 384, 537CrossRefGoogle Scholar
Khurana, K., et al. 1996, Nature, 395, 777CrossRefGoogle Scholar
Kieffer, S. W., et al. 2006, Science, 314, 1764CrossRefGoogle Scholar
Kivelson, M. G., et al. 2004, in Bagenal, F., Dowling, T., & McKinnon, W. (eds.), Jupiter: The Planet, Satellites and Magnetosphere (Cambridge: Cambridge University Press), p. 513Google Scholar
Lewis, J. S. 1971, Icarus, 15, 174CrossRefGoogle Scholar
Lopes, R., et al. 2007, Icarus, 186, 395CrossRefGoogle Scholar
Matson, D. L., et al. 2007, Icarus, 187, 569CrossRefGoogle Scholar
McKinnon, W. B. 1997, Icarus, 130, 540CrossRefGoogle Scholar
McKinnon, W. B., et al. 2008, in Barucci, M. A., Boehnhardt, H., Cruikshank, D. P., & Morbidelli, A. (eds.), The Solar System Beyond Neptune (Tucson: University of Arizona Press), p. 213Google Scholar
Nagel, K., et al. 2004, Icarus, 169, 402CrossRefGoogle Scholar
Niemann, H. B., et al. 2005, Nature, 438, 779CrossRefGoogle Scholar
Nimmo, F. & Pappalardo, R. T. 2006, Nature, 441, 614CrossRefGoogle Scholar
Peale, S. J. 1999, Ann. Rev. Astron. Astrophys., 37, 533CrossRefGoogle Scholar
Porco, C. C., et al. 2005, Nature, 434, 159CrossRefGoogle Scholar
Porco, C. C., et al. 2006, Science, 311, 1393CrossRefGoogle Scholar
Postberg, F., et al. 2009, Nature, 459, 1098CrossRefGoogle Scholar
Schubert, G., et al. 1986, in Burns, J. A. & Matthews, M. S. (eds.) Satellites (Tucson: University Arizona Press), p. 224CrossRefGoogle Scholar
Schubert, G., et al. 2004, in Bagenal, F., Dowling, T., & McKinnon, W. (eds.) Jupiter: The Planet, Satellites and Magnetosphere (Cambridge: Cambridge University Press), p. 281Google Scholar
Schubert, G., et al. 2007, Icarus, 188, 345CrossRefGoogle Scholar
Seidelmann, P. K., et al. 2007, Celest. Mech. Dynam. Astron., 98, 155CrossRefGoogle Scholar
Sohl, F. & Schubert, G. 2007, in Spohn, T. (ed.), Treatise on Geophysics 10 (Amsterdam: Elsevier), p. 27CrossRefGoogle Scholar
Sohl, F., et al. 1995, Icarus, 115, 278CrossRefGoogle Scholar
Sohl, F., et al. 2002, Icarus, 157, 104CrossRefGoogle Scholar
Sohl, F., et al. 2003, J. Geophys. Res., 108, E12, 5130Google Scholar
Spencer, J., et al. 2006, Science, 311, 1401CrossRefGoogle Scholar
Spohn, T. & Schubert, G. 2003, Icarus, 161, 456CrossRefGoogle Scholar
Thomas, P. C., et al. 2007, Icarus, 190, 573CrossRefGoogle Scholar
Tobie, G., et al. 2005, Icarus, 175, 496CrossRefGoogle Scholar
Tobie, G., et al. 2006, Nature, 440, 61CrossRefGoogle Scholar
Tobie, G., et al. 2008, Icarus, 196, 642CrossRefGoogle Scholar
Tomasko, M. G., et al. 2005, Nature, 438, 765CrossRefGoogle Scholar
Zimmer, C., et al. 2000, Icarus, 147, 329CrossRefGoogle Scholar