Observations from earth orbit and variability of the polar aurora on Jupiter
1980; IOP Publishing; Volume: 241; Linguagem: Inglês
10.1086/183386
ISSN1538-4357
AutoresJ. T. Clarke, H. W. Moos, S. K. Atreya, A. L. Lane,
Tópico(s)Solar and Space Plasma Dynamics
Resumoview Abstract Citations (113) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Observations from earth orbit and variability of the polar aurora on Jupiter Clarke, J. T. ; Moos, H. W. ; Atreya, S. K. ; Lane, A. L. Abstract Spatially resolved spectra of Jupiter taken with the International Ultraviolet Explorer satellite show enhanced emissions from the polar regions at H L-alpha (1216 A) and in the Lyman and Werner bands of H2 (1175-1650 A). Two types of variability in emission brightness have been observed in these aurorae: an increase in the observed emission as the auroral oval rotates with Jupiter's magnetic pole to face toward the earth and a general variation in brightness of more than an order of magnitude under nearly identical observing conditions. In addition, the spectral character of these aurorae (determined by the ratio of H L-alpha to H2 brightnesses) appears variable, indicating that the depth of penetration of the auroral particles is not constant. Publication: The Astrophysical Journal Pub Date: November 1980 DOI: 10.1086/183386 Bibcode: 1980ApJ...241L.179C Keywords: Auroral Spectroscopy; Jupiter Atmosphere; Planetary Magnetic Fields; Polar Regions; Spaceborne Astronomy; Earth Orbits; Explorer Satellites; H Alpha Line; Planetary Magnetospheres; Ultraviolet Astronomy; Lunar and Planetary Exploration full text sources ADS | data products MAST (1)
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