A possible detection of Jupiter's northern auroral S1(1) H2 quadrupole line emission

Details A possible detection of Jupiter's northern auroral S1(1) H2 quadrupole line emission A possible detection of Jupiter's northern auroral S1(1) H2 quadrupole line emission

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...74..351t&link_type=abstract

Icarus (ISSN 0019-1035), vol. 74, May 1988, p. 351-356.

Physics

11

Auroral Zones, Emission Spectra, Far Infrared Radiation, Jupiter Red Spot, Ultraviolet Radiation, H Alpha Line, High Energy Electrons, Upper Atmosphere, Jupiter, Auroras, Emissions, Intensity, Spectra, Wavelengths, Flux, Earth-Based Observations, Equipment, Hydrogen, Parameters

Scientific paper

The authors measured an upper limit to the mean intensity over an 8-arcsec2 illuminated beam for the S1(1) H2 quadrupole emission near Jupiter's northern auroral UV/thermal "hot spot" at λIII(1965) = 180°. This is 4.2×10-6W m-2sr-1. Using higher resolution spectra, they observed a weak emission feature at the wavelenght of this line with an intensity of (4.1±1.1)×10-7W m-2sr-1 near λIII(1965) = 254°. These intensities are lower than those predicted by Kim and Maguire (1986), suggesting that species, such as atomic hydrogen in the aurora, may be playing a greater role in the collisional deexcitation of H2 than supposed.

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