Io's sodium cloud - Explanation of the east-west asymmetries. II

Abstract

view Abstract Citations (18) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Io's sodium cloud - Explanation of the east-west asymmetries. II Smyth, W. H. Abstract A three- dimensional model for Io's sodium cloud incorporating the full effects of solar radiation acceleration associated with solar resonance scattering of atoms in the D-1 and D-2 lines is developed and applied to interpret two different but related east-west asymmetries exhibited in the cloud, using data obtained from ground-based telescopes. The physical changes produced in the cloud by the solar radiation acceleration as a function of satellite phase angle are documented, and how these changes explain the asymmetries is clarified. The model results suggest an east-west phase lag asymmetry of 10-15 degrees; results for the observed east-west intensity asymmetry of Bergstrahl (1977) are also presented. The east-west shape and intensity asymmetries are found to follow directly from the lack of circular symmetry about Jupiter of the forces acting on the cloud atoms. Publication: The Astrophysical Journal Pub Date: January 1983 DOI: 10.1086/160644 Bibcode: 1983ApJ...264..708S Keywords: Io; Molecular Clouds; Radiation Effects; Sodium; Solar Radiation; Asymmetry; D Lines; Data Acquisition; Jupiter (Planet); Light Scattering; Monatomic Molecules; Particle Acceleration; Resonance Scattering; Telescopes; Three Dimensional Models; JUPITER; SATELLITES; IO; SODIUM; CLOUDS; ASYMMETRY; DIAGRAMS; SHAPE; MATHEMATICAL MODELS; INTERACTIONS; SOLAR RADIATION; PRESSURE; RESONANCE; SCATTERING; INTENSITY; OBSERVATIONS; HYPOTHESES; OSCILLATIONS; DATA; PLASMA TORUS; CALCULATIONS; EMISSIONS; VELOCITY; PHASE ANGLES; COMPARISONS; ANALYSIS; Lunar and Planetary Exploration; Jupiter full text sources ADS |