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Title:
Interpreting the Results from Recent Simultaneous Chandra/HST Observations of the Jovian Aurora
Authors:
Waite, J. H.; Elsner, R.; Lugaz, N.; Gladstone, G. R.; Ford, P.; Howell, R.
Affiliation:
AA(University of Michigan), AB(NASA/MSFC), AC(University of Michigan), AD(SwRI), AE(MIT), AF(University of Wymoming)
Publication:
American Astronomical Society, DPS meeting #35, #50.10; Bulletin of the American Astronomical Society, Vol. 35, p.1019
Publication Date:
05/2003
Origin:
AAS
Bibliographic Code:
2003DPS....35.5010W

Abstract

Jupiter was observed by the Chandra X-ray Observatory in late February, 2003, for 144 ks, using both the ACIS-S and HRC-I imaging x-ray cameras. Five orbits of HST STIS observations of the planet's northern auroral zone were obtained during the ACIS-S observations. Spectra of the x-ray emissions were acquired for the first time. The Ulysses spacecraft also observed quasi-periodic radio burst simultaneous with the other observations.Past flyby obserations by Cassini in the ultraviolet and infrared portions of the spectrum show the formation of enhanced acetylene and aerosols in the same region of the polar cap where the x-rays and Jupiter ultraviolet flares are seen. These data can be interpreted as very energetic sulfur and oxygen ions accelerated to >10 Mev as part of the global auroral return current at high latitudes. We present an interpretation of the process of x-ray formation based on the hyperspectral data set accumulated over the past three years of observing.
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