ASTR 151 1st Edition Lecture 24 Outline of Last LectureI. Chapter/ Sections ReviewII. Chapter 11.3III. Chapter 11.4Outline of Current LectureIV. ReviewV. Chapter 11.5VI. Chapter 11.6Current LectureI. Reviewa. Jupiter`s magnetic field`s source is it`s metallic hydrogen swirling in it`s interiori. Most powerful field in the universeb. What`s thought to be the cause of IO`s volcanism?i. Tidal stress from Jupiter and EuropaII. Chapter 11. Section 5 Jupiter`s 67 Moonsa. 8 Regular Moons i. Orbits are progradeii. Close to circulariii. Roughly in Jupiter`s equatorial placeiv. Probably formed with Jupiter itselfb. 59 Irregular Moonsi. Eccentric orbitsii. Probably captured by Jupiter`s orbitThese 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.c. Galilean Moonsi. Were originally named after the four sons of the duke who funded Galileo`s research:1. Each moon was named with the Roman god, Jupiter`s lovers inmind2. The moons have low eccentricity which is similar to terrestrial planets3. Galilean Moons (excluding Calisto) have a 1.2.4. Orbit resonancea. IOi. Closest to Jupiterii. Iron and iron sulfide coreiii. Rocky mantleiv. Atmosphere 90% sulfur dioxidev. Changes surface features in weeksvi. Densest of Jupiter`s moonsvii. No craters youngest surface in the galaxy viii. Huge tidal forces causes volcanism1. Charged particles interact with Jupiter`s magnetosphere makes a plasma torusb. Europai. Smooth, frozen water surfaceii. Has no cratersiii. Tidal forces stress and crack the ice. Water flows out only to freeze over again.iv. No tectonic motionv. Induced magnetic fieldvi. Very thin oxygen particlesvii. Density = 3000kg/m^3viii. Two models of the interiorc. Ganymedei. Largest moon in the solar systemii. Has cratersiii. Largest mooniv. Holds water icev. Dark spots filled with dustvi. Atmosphere has thin oxygenvii. Iron in core (B-field)viii. Has it`s own Magnetosphereix. Has polar ice capsd. Calistoi. Called Calisto meaning “the prettiest one”ii. Atmosphere is thin mostly carbon dioxideiii. Induced magnetic fieldiv. No evidence of plate activityv. Bright wrinkly spot is called ValhallaIII. Chapter 11. Section 6 Jupiter`s Ringa. Discovered by Voyager 1i. Made up of 3 layers, each are made of dust1. Halo2. Main3. Gossamer Ringsii. Moons within the rings help replenish the rings1. Alathea
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