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| INSTITUTET FÖR RYMDFYSIK |
UPPSALA |
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| Swedish Institute of Space Physics |
(59°50.272′N, 17°38.786′E) |
Student project at IRF Uppsala
BSc thesis (5 x 15c)/Examensarbete (5 x 15hp)
Caught Between Shocks: A survey of magnetosheath properties in the terrestrialplanets and Jupiter
Students: Gustav Andrén, Oscar Jansson, Joel Nordström, Elias Röstin, Jakob Wrangstål,
Uppsala University
Supervisor: Moa Persson
Period: March-June 2025
Abstract
The magnetospheres of planets give rise to many phenomena, both visual, such as the northern lights on Earth, or non-visual, such as the atmospheric escape of ions on Venus, and the study of magnetospheres can tell something about the planets’ origins. A magnetosphere can be divided into different areas with different properties. In this study, the focus lies on the magnetosheath, which is the area between the bow shock and the magnetopause. The aim of this study was to compare the magnetosheaths between the planets from Mercury to Jupiter. To make the comparison, the properties proton density, proton speed, proton temperature, and magnetic field strength were chosen as parameters. The comparisons were done by qualitatively analyzing two-dimensional color maps of the different parameters. A linear regression was also made to see if there was any clear correlation between different planetary properties and the chosen parameters. From the results, it was concluded that there are many similarities between the properties of the planets, especially between planets that have similar magnetic fields, such as Venus and Mars. It was also concluded that magnetosheath properties depend on several variables, and with the available data, it is difficult to make systematic comparisons. Since all satellites were equipped with different instruments and measure the properties in different ways, it is very challenging to make a quantitative comparison.
Results
![[CME]](np.png)
Example plot from the report, comparing the proton densities (protons/cm3) observed around the terrestrial planets.
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