IO: Recent Observations

  • Yuk L. Yung
Conference paper
Part of the Space Science Library book series (ASSL, volume 51)


Our knowledge of Io has progressed dramatically in the past year. Prior to 1973, observations of Io made at optical, IR and radio wavelengths have revealed that this innermost Galilean satellite of Jupiter is unusual in a number of ways. A list would include post-eclipse brightening, high near-IR albedo, puzzling features (or lack of features) in the reflection spectrum, discordant brightness temperatures measured at 10 and 20 μm, and modulation of Jovian decametric activity. We now understand that Io has an atmosphere and an ionosphere. Their presence and interaction with the Jovian magnetosphere may account for much of the unusual behavior of the enigmatic satellite.


Electron Flux Radio Occultation Electron Density Profile Resonance Scattering Puzzling Feature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bergstrahl, J. T., Matson, D. L., and Johnson, T. V.: 1974, Paper IAU Colloq., No. 28, Aug. 18–21, 1974, Cornell University, in press.Google Scholar
  2. Bigg, E. K.: 1974, Nature 203, 1008.ADSCrossRefGoogle Scholar
  3. Brown, R. A.: 1974, in A. Woszczyk and C. Iwaniszewska (eds.), ‘Exploration of the Planetary System’, IAU Symp. 65, 527.Google Scholar
  4. Carlson, R. W.: 1974, private communication.Google Scholar
  5. Carlson, R. W. and Judge, D. L.: 1974, Paper, IAU Colloq., No. 28, Aug. 18–21, in press.Google Scholar
  6. Cruikshank, D. P., Pilcher, C. B., and Sinton, W. M.: 1974, Paper IAU Colloq., No. 28, Aug. 18–21, Cornell University, in press.Google Scholar
  7. Drake, G. W. F.: 1971, Phys. Rev. A3, 908.ADSGoogle Scholar
  8. Fillius, R. W. and Mcllwain, C. E.: 1974, Science 183, 314.ADSCrossRefGoogle Scholar
  9. Goldreich, P. and Lynden-Bell, D.: 1969, Astrophys. J. 156, 59.ADSCrossRefGoogle Scholar
  10. Gurnett, D. A.: 1972, Astrophys. J. 175, 525.ADSCrossRefGoogle Scholar
  11. Judge, D. L. and Carlson, R. W.: 1974, Science 183, 318.ADSCrossRefGoogle Scholar
  12. Kliore, A., Cain, D. L., Fjeldbo, G., Seidel, B. L., and Rasool, S. I.: 1974, Science 183, 323.ADSCrossRefGoogle Scholar
  13. Lewis, J. S.: 1971, Icarus 15, 174.ADSCrossRefGoogle Scholar
  14. Lewis, J. S.: 1974, private communication.Google Scholar
  15. Matson, D. L., Johnson, T. V., and Fanale, F. P.: 1974, Paper, Amer. Astron. Soc. Div. Planetary Science, 5th annual meeting.Google Scholar
  16. McElroy, M. B.: 1965, Planetary Space Sci. 13, 403.ADSCrossRefGoogle Scholar
  17. McElroy, M. B. and Yung, Y. L.: 1975, Astrophys. J. 196, 227.ADSCrossRefGoogle Scholar
  18. McElroy, M. B., Yung, Y. L., and Brown, R. A.: 1974, Astrophys. J. Letters 187, L127.ADSCrossRefGoogle Scholar
  19. Parkinson, T. D.: 1975, this volume, p. 433.Google Scholar
  20. Shawhan, S. D., Goertz, C. K., Hubbard, R. F., Gurnett, D. A., and Joyce, G.: 1974, Paper presented at ‘The Magnetosphere of the Earth and Jupiter’, Frascati, Italy, May 28–31. To be published in Proceedings, D. Reidel.Google Scholar
  21. Trafton, L., Parkinson, T. D., and Macy, Jr., W.: 1974, Astrophys. J. Letters 190, L85.ADSCrossRefGoogle Scholar
  22. Trainor, J. H., Teegarden, B. J., Stilwell, D. E., McDonald, F. B., Roelof, E. C., and Webber, W. R.: 1974, Science 183, 311.ADSCrossRefGoogle Scholar

Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1975

Authors and Affiliations

  • Yuk L. Yung
    • 1
  1. 1.Center for Earth and Planetary PhysicsHarvard UniversityCambridgeUSA

Personalised recommendations