Two micron quadrupole line emission of H2 from the Jovian auroral zone

Details Two micron quadrupole line emission of H2 from the Jovian auroral zone Two micron quadrupole line emission of H2 from the Jovian auroral zone

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986joat.conf...95k&link_type=abstract

In NASA. Goddard Inst. for Space Studies The Jovian Atmospheres p 95-98 (SEE N87-17598 09-91)

Computer Science

1

Auroral Zones, Hydrogen Atoms, Jupiter Atmosphere, Line Spectra, Spectral Emission, Ammonia, Chemical Clouds, Electron Bombardment, Electron Energy, Energy Spectra, Iue, Methane

Scientific paper

Energetic electron bombardment of the H2 atmosphere in the Jovian auroral zone was studied using a theoretical model for the vibrational-ratational excitation processes. A non-relativistic electron energy deposition program originally developed by Peterson et al. was used. Assuming an incident energy electron spectrum from IUE observations, the calculated intensities of the two micron quadrupole lines from the Jovian auroral zone are shown to be comparable to the intensities of infrared objects in the Orion nebula. Jupiter is fairly dark in the 2 to 2.5 micron spectral range because of strong absorption of cH4 and NH3 vibrational-rotational bands. Consequently, assuming no significant decrease in Jovian auroral activity since the Voyager encounter with Jupiter in 1979, the two micron quadrupole emission of H2 may be observable by ground-based telescope through the two micron atmospheric window.

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