The Analysis of the H Lyman α Emission Line Profile from Jupiter's Aurora

✍ Scribed by Daniel Rego; John T. Clarke; Lotfi Ben Jaffel; Gilda E. Ballester; Renée Prangé; Jack McConnell

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 161 KB
• Volume: 150
• Category: Article
• ISSN: 0019-1035
• DOI: 10.1006/icar.2000.6583

✦ Synopsis

We present the analysis and modeling of the emission spectra of the jovian northern auroral region taken from May 28 to June 3, 1993, with the Goddard High Resolution Spectrograph on board the Hubble Space Telescope. They extend from 1204 to 1240 Å covering H Lyman α and part of the Werner and the Lyman bands of H 2 . We used the 2 × 2 arcsec large science aperture combined with the G160M grating (spectral resolution of 570 m Å) centred on Jupiter's central meridian. The auroral region studied extends from 50 to 60 • north latitudes and from 130 to 220 • System III longitudes. Within the 1 arcsec pointing uncertainty, most of the region delineated by the theoretical ovals at 5.9 and 30 jovian radii (R J ) in the VIP4 model of J. E. C. Connerney, M. H. Acuna, N. F. Ness, and T. Satoh (1998, New models of Jupiter's magnetic field constrained by the Io flux tube footprint. J. Geophys. Res. 103, 11,929-11,939), including the auroral oval derived from the Wide Field Planetary Camera 2 images by J. T.