The sources of sodium escaping from Io revealed by spectral high definition imaging

Nature

Volumn 448, Issue 7151, 2007, Pages 330-332

  Mendillo, Michael ^a   Laurent, Sophie ^a   Wilson, Jody ^a   Baumgardner, Jeffrey ^a   Konrad, Janusz ^a   Karl, W Clem ^a  

^a Boston University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

SODIUM;

ELECTRON; IMAGING METHOD; IONOSPHERE; JUPITER; MAGNETIC FIELD; MOON; PLANETARY ATMOSPHERE; PLASMA; SODIUM; SPACECRAFT; TRACE GAS; VOLCANIC ERUPTION; VOLCANIC GAS;

ARTICLE; ASTRONOMY; ATMOSPHERE; MOON; PRIORITY JOURNAL; SPACE FLIGHT; SPECTROSCOPY; VOLCANO;

EID: 34447520287     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature06000     Document Type: Article

References (27)

1. Smyth, W. H. & Combi, M. R. A general model for Io's neutral gas clouds. II. Application to the sodium cloud. Astrophys. J. 328, 888-918 (1988).
2. Schneider, N. M. et al. Molecular origin of Io's fast sodium. Science 253, 1394-1397 (1991).
3. Mendillo, M., Baumgardner, J., Flynn, B. & Hughes, J. The extended sodium nebula of Jupiter. Nature 348, 312-314 (1990).
4. Wilson, J. K. et al. The dual sources of Io's sodium clouds. Icarus 157, 476-489 (2002).
5. Mendillo, M., Wilson, J., Spencer, J.&Stansbury, J. Io's volcanic control of Jupiter's extended neutral clouds. Icarus 170, 430-442 (2004).
6. Pilcher, C. B., Fertel, J. H., Smyth, W. H. & Combi, M. R. Io's sodium directional features - Evidence for a magnetospheric-wind-driven gas escape mechanism. Astrophys. J. 287, 427-444 (1984).
7. Goldberg, B. A., Garneau, G. W. & Lavoie, S. K. Io's sodium cloud. Science 226, 512-516 (1984).
8. Wilson, J. K. & Schneider, N. M. Io's sodium directional feature: Evidence for ionospheric escape. J. Geophys. Res. 104, 16567-16584 (1999).
9. Burger, M. H. Schneider, N. M. & Wilson, J. K. Galileo's close-up view of the Io sodium jet. Geophys. Res. Lett. 26, 3333-3336 (1999).
10. Baumgardner, J., Mendillo, M. & Wilson, J. K. A digital high definition imaging system for spectral studies of extended planetary atmospheres. 1. Initial results in white light showing features on the hemisphere of Mercury unimaged by Mariner 10. Astron. J. 119, 2458-2464 (2000).
11. Fried, D. L. Probability of getting a lucky short-exposure image through turbulence. J. Opt. Soc. Am. 68, 1651-1658 (1978).
12. Warrel, J&. Limaye, S. S. Properties of the hermean regolith: I. Global regolith albedo variation at 200 km scale from multicolor CCD imaging. Planet. Space Sci. 49, 1531-1552 (2001).
13. Mendillo, M. et al. Imaging the surface of Mercury using ground-based telescopes. Planet. Space Sci. 49, 1501-1505 (2001).
14. Laurent, S. Design of a High Definition Imaging (HDI) Analysis Technique Adapted to Challenging Environments PhD dissertation (College of Engineering, Boston University, Boston, 2004); 〈http://sirius.bu.edu/ aeronomy/laurentthesis.pdf〉.
15. Laurent, S. et al. Design of a High Definition Imaging (HDI) analysis technique adapted to challenging environments. In Applications of Digital Image Processing XXVII (ed. Tescher, A. G.) Proc. SPIE 5558, 676-687 (2004).
16. Linker, J. A., Kivelson, M. G. & Walker, R. J. A three-dimensional MHD simulation of plasma flow past Io. J. Geophys. Res. 96, 21037-21053 (1991).
17. Saur, J., Neubauer, F. M., Strobel, D. F. & Summers, M. E. Three-dimensional plasma simulation of Io's interaction with the Io plasma torus: Asymmetric plasma flow. J. Geophys. Res. 104, 25105-25126 (1999).
18. Combi, M. R., Kabin, K., Gombosi, T. I., DeZeeuw, D. L. & Powell, K. G. Io's plasma environment during the Galileo flyby: Global three-dimensional MHD modeling with adaptive mesh refinement. J. Geophys. Res. 103, 9071-9082 (1998).
19. Kabin, K. et al. Io's magnetospheric interaction: an MHD model with day-night asymmetry. Planet. Space Sci. 49, 337-344 (2001).
20. Frank, L. A. et al. Plasma observations at Io with the Galileo spacecraft. Science 274, 394-395 (1996).
21. Hinson, D. P. et al. Galileo radio occultation measurements of Io's ionosphere and plasma wake. J. Geophys. Res. 103, 29343-29357 (1998).
22. Kuppers, M. & Schneider, N. M. Discovery of chlorine in the Io torus. Geophys. Res. Lett. 27, 513-516 (2000).
23. Lellouch, E., Paubert, G., Moses, J. J., Schneider, N. M. & Strobel, D. F. Volcanically emitted sodium chloride as a source for Io's neutral clouds and plasma torus. Nature 42, 45-47 (2003).
24. Zolotov, M. Yu & Fegley, B. Jr. Eruption conditions of Pele volcano on Io inferred from chemistry of its volcanic plume. Geophys. Res. Lett. 27, 2789-2792 (2000).
25. Moses, J. J., Zolotov, M. Yu & Fegley, B. Jr. Alkali and chlorine photochemistry in a volcanically driven atmosphere on Io. Icarus 156, 107-135 (2002).
26. Wilson, J. K. & Mendillo, M. A change in Io's sodium clouds during the Cassini/Jupiter flyby. Eos 82, S255 (2001).
27. Burger, M. H. et al. Mutual event observations of Io's sodium corona. Astrophys. J. 563, 1063-1074 (2001).