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Slow-mode shock candidate in the Jovian magnetosheath |
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| Authors: | Z Bebesi K Szego N Krupp AM Rymer WS Kurth MK Dougherty |
| Institution: | a Max Planck Institute for Solar System Research, Max Planck Str. 2, 37191 Katlenburg Lindau, Germany b KFKI Research Institute for Particle and Nuclear Physics, Budapest, Hungary c International Space Science Institute, Bern, Switzerland d Johns Hopkins Applied Physics Laboratory, Laurel, Maryland, USA e Mullard Space Science Laboratory, Hombury St. Mary, UK f University of Iowa, Iowa City, IA, USA g Southwest Research Institute, San Antonio, TX, USA h Blackett Laboratory, Imperial College London, London, UK |
| Abstract: | We discuss some interesting plasma observations in the Jovian magnetosheath by the onboard plasma instruments of the Cassini spacecraft during the 2000-2001 Jupiter flyby. We propose that the observations are consistent with a slow-mode shock transition. In the terrestrial magnetosheath, a number of observations have been made that are consistent with slow-mode waves or shocks. In addition, a number of observations have established that, at least occasionally, slow-mode structures form at the plasma sheet-lobe boundary in the terrestrial magnetotail, related to X lines associated with reconnection. There has been only one previously reported observation of a slow-mode shock-like transition in the Jovian plasma environment. This observation was made in the dayside magnetosheath. The observation we report here was made well downstream of the magnetosphere in Jupiter’s magnetosheath, at local time ∼19:10. For our analysis we have used the data from the Cassini Plasma Spectrometer (CAPS) the Magnetospheric Imaging Instrument (MIMI) and the Magnetometer (MAG). The bow shock crossings observed by Cassini ranged downstream to −600 RJ from the planet |
| Keywords: | Magnetohydrodynamics Shock waves Slow-mode shocks Jupiter |
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