1 / 6

ASTR 2310: Chapter 12

ASTR 2310: Chapter 12. The Solar System in Perspective Comparative Planetology (“Lessons”) ‏ Origin of the Solar System Exoplanets Detection Properties See Exoplanet Resources posted at http://www.mikebrotherton.com/?p=2168. ASTR 2310: Chapter 12. Comparative Planetology

PamelaLan
Télécharger la présentation

ASTR 2310: Chapter 12

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ASTR 2310: Chapter 12 • The Solar System in Perspective • Comparative Planetology (“Lessons”)‏ • Origin of the Solar System • Exoplanets • Detection • Properties • See Exoplanet Resources posted at http://www.mikebrotherton.com/?p=2168

  2. ASTR 2310: Chapter 12 • Comparative Planetology • Lesson 1: Surfaces of planets are shaped by competing internal and external mechanisms (e.g. volcanism vs. cratering). • Lesson 2: More massive, colder planets are better able to retain atmospheres (e.g., Pluto, Moon, Mercury, Mars, Venus, Earth, Jovian planets, in increasing mass).

  3. ASTR 2310: Chapter 12 • Comparative Planetology • Lesson 3: Giant satellites of Jovian planets show patterns consistent with our ideas about formation of the planets (e.g. they're mini-solar systems). • Lesson 4: Many unusual features of the solar system can be attributed to giant impacts (Earth's moon, Triton, Uranus, Venus).

  4. ASTR 2310: Chapter 12 • Origin of the Solar System • Emerging picture of a rotating protoplanetary disk explains • Planets nearly in same plane • Sun's equator is close to this plane. • Planetary orbits are nearly circular. • Planets orbit in same direction. • Most planets and sun rotate in same direction as the orbital motion.

  5. ASTR 2310: Chapter 12 • Origin of the Solar System • Other issues also addressed • Nature of small bodies – left overs, with many moons formed around Jovian planets, smallest stuff replenished from collisions • Differences in chemical composition (metal, stone, ices, volatiles)‏ • Rings around Jovian planets (failed moons or destroyed moons)‏ • Chemical differentiation of terrestrial planets (radioactivity)‏

  6. ASTR 2310: Chapter 12 • Exoplanets • Detection • Difficulties • Center of Mass Wobbles • Transit Method (eclipses)‏ • Properties • Not quite like solar system planets • In part because different things can happen • In part because of selection effects

More Related