Lyman alpha line shapes from electron impact H2 dissociative processes in the Jovian auroral zone

Waite, J. H., Jr.; Gladstone, G. R.

Over the past two years several Lyman alpha line profile spectra of Jupiter were obtained using the International Ultraviolet Explorer (IUE) telescope. Several different regions of the planet were observed including the auroral zone, the low and mid latitudes, and the equatorial region which includes the Lyman alpha bulge region. These results have presented a very interesting picture of atomic hydrogen on Jupiter with explanations that range from ion outflow in the auroral zone to large thermospheric winds at low and mid latitudes. New data are needed to address the outstanding questions. Almost certainly, high resolution spectra from the Hubble Space Telescope will play a role in new observations. Better data also require better models, and better models require new laboratory data as inputs. The purpose of this program is two-fold: (1) to introduce a method by which new laboratory electron impact measurements of H2 dissociation can be used to calculate both the slow and fast H(S-2) and H(P-2) fragments in an H2 atmosphere; and (2) to determine the predicted Lyman alpha line shape that would result from electron impact production of these dissociative fragments in the Jovian auroral zone.

Document ID

19930001978

Acquisition Source

Legacy CDMS

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Other

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Date Acquired

September 6, 2013

Publication Date

August 1, 1992

Publication Information

Publication: Modeling the Jovian Aurora

Subject Category

Accession Number

93N11166

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Public

Work of the US Gov. Public Use Permitted.

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