ASTR 151 1st Edition Lecture 23 Outline of Last LectureI. Chapter 11.1II. Chapter 11.2Outline of Current LectureIII. Chapter/ Sections ReviewIV. Chapter 11.3V. Chapter 11.4Current LectureI. Chapter/ Sections Reviewa. Jupiter is oblated because of rapid rotation and fluid interior.i. Fastest rotation in the universeb. What`s the reason behind the variation in rings?i. Differential rotation and underlying zonal flowII. Chapter 11. 3 Internal Structurea. Comet Impacti. Shoemaker comet (Levy 9) struck Jupiter in fragmentsii. Discovered in 1993 while orbiting Jupiteriii. Appeared to have nucleusiv. Broke up in 1992 likely collision in 1994v. 1st detection of diatomic sulfurvi. No sign of oxygen bearing a moleculesvii. Small amounts of iron, silicon, and magnesiumviii. Jupiter pulls everything to itself due to GravityThese 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 Suni. Core cools due to gravitational compressionc. No, Jupiter couldn`t be a star.d. It`s interior: hydrogen, helium, it`s core is rockyi. Crust= molecular hydrogenii. Mantle= liquid hydrogeniii. Core= metallic hydrogenIII. Chapter 11. 4 Magnetospherea. Surrounded by belts of charged particlesi. 30 kilometers acrossii. 20,000 times that of Earthiii. Can extend beyond Saturn`s orbitb. Has magnetic field with no ironi. Metallic hydrogen1. Behaves like electric conductor2. Predicted in 1936, hard to prove experimentally since high pressure is neededii. Geologic and magnetic north and south poles are located in the same place.iii. Has quadruple and octupole and higher componentsiv. Plasma Torus1. Magnetosphere acts “weird”c. Has 67 moonsi. Largest four moons are Galilean Moonsii. Other moons are asteroid size1. IO is the most active thing in our universea. One of Jupiter`s moonsb. Charges ionized particlesi. Interacting with Jupiter`s atmosphere makes them accelerate (hotter) towards theplanetsii. Permanent Aurora?1. Charged particles become solar wind2. Very weak in all visible spectrums of
View Full Document
Unlocking...