Mapping the Brightness of Ganymede's Ultraviolet Aurora Using Hubble Space Telescope Observations

• Published in: Journal of Geophysical Research: Planets
• Main Authors: Marzok, A., Schlegel, S., Saur, J., Roth, L., Grodent, D., Strobel, D. F., Retherford, K. D., Marzok, A.; 1 Institute of Geophysics and Meteorology, University of Cologne Cologne Germany, Schlegel, S.; 1 Institute of Geophysics and Meteorology, University of Cologne Cologne Germany, Roth, L.; 2 School of Electrical Engineering, KTH Royal Institute of Technology Stockholm Sweden, Grodent, D.; 3 Laboratoire de Physique Atmosphérique et Planétaire, STAR Institute, University of Liège Liège Belgium, Strobel, D. F.; 4 Department of Earth and Planetary Science, and Department of Physics and Astronomy, The Johns Hopkins University Baltimore MD USA, Retherford, K. D.; 5 Southwest Research Institute San Antonio TX USA
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2022
• Subjects: ddc:523; Ganymede; auroral maps; Hubble Space Telescope observations; Hubble; Northern lights
• Online Access: https://doi.org/10.1029/2022JE007256; http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/10249

We analyze Hubble Space Telescope observations of Ganymede made with the Space Telescope Imaging Spectrograph between 1998 and 2017 to generate a brightness map of Ganymede's oxygen emission at 1,356 Å. Our Mercator projected map demonstrates that the brightness along Ganymede's northern a...