Other
Scientific paper
Apr 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jkas...28...89k&link_type=abstract
Journal of the Korean Astronomical Society, vol. 28, no. 1, p. 89-95
Other
1
Jupiter:Aurora, Infrared:Imaging
Scientific paper
We examined a total of 166 images of 3.5 micrometer H3+ emission in the auroral regions of Jupiter observed with the Protocam on IRTF in 1991 and 1992, and found that 30 images contain a clearly isolated small emission patch in the vicinity of the northern auroral regions. Two different time sequences of the images show the small patches at the dusk limb in the range of System III longitudes from 270 deg. through 0 deg. to 90 deg. The small patches in one sequence of the images, which were taken at Io phase between 240 deg. and 260 deg., may be related to the Io flux tube, similarly suggested by Connerney et al. (1993). However, the small patches in the other sequence are separated from Io as much as 80 deg. in longitude. The positions of the small patches in both sequences are deviated equatorward from the Io footprint oval by 5 deg. - 8 deg. latitude in the longitudinal range of 270 deg. - 360 deg. A significant modification is required in current Jovian magnetic field models near the Jupiter's surface if the small patches are produced at the foot of the Io flux tube.
Joon Kim Sang
Kim Yong-Ha
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