Jupiter’s Nightside Airglow and Aurora
G. Randall Gladstone, S. Alan Stern, David C. Slater, Maarten Versteeg, Michael W.
Davis, Kurt D. Retherford, Leslie A. Young, Andrew J. Steffl, Henry Throop, Joel Wm.
Parker, Harold A. Weaver, Andrew F. Cheng, Glenn S. Orton, John T. Clarke, Jonathan
D. Nichols
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Movie S1
Movie S1.
The Advanced Camera for Surveys (ACS) on the Hubble Space Telescope (HST) acquired many UV images of Jupiter’s aurora during the New Horizons flyby, as part of a larger program to study the effect of the solar wind on the auroras of Jupiter and Saturn (ID 10862, “Comprehensive Auroral Imaging of Jupiter and Saturn during the International Heliophysical Year,” John Clarke, PI). A set of images from March 3, 2007 cover the time of the Alice and LORRI observations described here, and have been assembled into an animation (jup_07_cx_acs.mov). Correcting for the ~45-minute light time, the LORRI image of Fig. 3 corresponds to a time on Earth of 10:03:57 UT. The first ACS frame after that was acquired ~20 minutes later (at 10:23:52 UT), and clearly shows the IFT profile rising high above the dawn limb. As for New Horizons, the actual foot of the IFT is behind the limb as seen from HST, and the rest of the animation (up until 12:42:27 UT) UT shows the IFT approaching—but not quite reaching—the limb (at which point it would be at the left-most location of auroral emissions). Other auroral animations from this HST program are publicly available at http://www.bu.edu/csp/PASS/main.html.
To view these movies, download a QuickTime viewer.
