XMM-NEWTON OBSERVATIONS OF JUPITER AND ITS NEIGHBOURHOOD

Jupiter and its neighbourhood are an exceptionally interesting source of Xrayswithin the solar system. We propose to observe the planet and its Galilean moonsover two XMMNewton orbits. A good signaltonoise RGS spectrum of Jupiter.sauroral .hot spots. will resolve the question of their origin: energetic ionprecipitation from entirely inside the magnetosphere, or acceleration ofcaptured solar wind ions in the outer magnetosphere. With EPIC we will studyoscillations observed by Chandra in the hot spot emissions, and the asymmetriesin Jupiter.s lowlatitude Xray emission first observed with ROSAT; we willstudy how Io.s and its Plasma Torus Xray emissions vary with Io.s orbital phaseabout Jupiter, and we will obtain the first secure Xray detections of all four Galilean satellites. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]