The Jovian sodium nebula: Two years of ground-based observations

Details The Jovian sodium nebula: Two years of ground-based observations The Jovian sodium nebula: Two years of ground-based observations

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jgr....99.8403f&link_type=abstract

Journal of Geophysical Research, vol. 99, no. E4, p. 8403-8409

Mathematics

Logic

7

Jupiter Atmosphere, Nebulae, Sodium, Io, Neutral Atoms, Variability, Jupiter, Sodium, Earth-Based Observations, Nebula, Spectroscopy, Equatorial Region, Emissions, Intensity, Symmetry, Morphology, Origin, Timescale, Structure, Calculations, Analysis, Brightness, Hypotheses, Formation

Scientific paper

The 1000-RJ-wide neutral sodium nebula of Jupiter has now been observed on four separate occasions from late 1989 to early 1992. The observations have consisted of both low-dispersion spectroscopy and direct imaging. These observations have allowed us to establish some of the general features of the nebula, such as the largely equatorial confinement of emission, the r-1 intensity behavior in the equatorial plane, and flaring of the emission with respect to the equator. Some additional evidence exists for more subtle morphology, such as a possible variable east-west intensity asymmetry. In this paper, we present a summary of observational evidence of variability in overall intensity, as well as in some of the morphological features of the nebula, over timescales of days, months, and years.

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