ASTR 151 1st Edition Lecture 23 Outline of Last Lecture I Chapter 11 1 II Chapter 11 2 Outline of Current Lecture III Chapter Sections Review IV Chapter 11 3 V Chapter 11 4 Current Lecture I Chapter Sections Review a Jupiter is oblated because of rapid rotation and fluid interior i Fastest rotation in the universe b What s the reason behind the variation in rings i Differential rotation and underlying zonal flow II Chapter 11 3 Internal Structure a Comet Impact i Shoemaker comet Levy 9 struck Jupiter in fragments ii Discovered in 1993 while orbiting Jupiter iii Appeared to have nucleus iv Broke up in 1992 likely collision in 1994 v 1st detection of diatomic sulfur vi No sign of oxygen bearing a molecules vii Small amounts of iron silicon and magnesium viii Jupiter pulls everything to itself due to Gravity These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute b Jupiter radiates more energy than the Sun i Core cools due to gravitational compression c No Jupiter couldn t be a star d It s interior hydrogen helium it s core is rocky i Crust molecular hydrogen ii Mantle liquid hydrogen iii Core metallic hydrogen III Chapter 11 4 Magnetosphere a Surrounded by belts of charged particles i 30 kilometers across ii 20 000 times that of Earth iii Can extend beyond Saturn s orbit b Has magnetic field with no iron i Metallic hydrogen 1 Behaves like electric conductor 2 Predicted in 1936 hard to prove experimentally since high pressure is needed ii Geologic and magnetic north and south poles are located in the same place iii Has quadruple and octupole and higher components iv Plasma Torus 1 Magnetosphere acts weird c Has 67 moons i Largest four moons are Galilean Moons ii Other moons are asteroid size 1 IO is the most active thing in our universe a One of Jupiter s moons b Charges ionized particles i Interacting with Jupiter s atmosphere makes them accelerate hotter towards the planets ii Permanent Aurora 1 Charged particles become solar wind 2 Very weak in all visible spectrums of light
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