PPT-Planet Formation

Topic Resonances Lecture by CP Dullemond Literature Murray amp Dermott Solar System Dynamics What is a resonance A resonance is when two characteristic frequencies of a system match up. Topic:. Formation of. gas giant planets. Lecture by: C.P. Dullemond. Two main theories. Gravitational instability of the gas disk. Core accretion scenario. Giant Planet Formation by. Gravitational Instability. Extra-solar planetary systems. Lecture . 16. Other theory. Tidal Hypothesis. Early attempt to explain the dichotomy of planets.. Problem?. tidal force strong enough to “draw out” a filament from stars will effectively disperse it before it could condense into planets!. Topic:. Orbital dynamics and. the restricted 3-body problem. Lecture by: C.P. Dullemond. Objects of the Solar System. Kuiper Belt. (30-50 AU). 10 AU. 1 AU. Earth. Mars. 1 AU. 1.38-. 1.67 AU. e. = 0.1. Topic:. Collapsing clouds. and the. formation of disks. Lecture by: C.P. Dullemond. Formation of a star from a . spherical molecular cloud core. Hydrostatic pre-stellar Cloud Core. Equation of hydrostatic equilibrium:. Topic:. Planet migration. Lecture by: C.P. Dullemond. Planet migration: different kinds. Type I migration (small mass planets). Type II migration (high mass planets). Type III migration (rare type II variant). Vincent . Geers. Institute for Astronomy, ETH Zurich. Star & Planet Formation group. A. . Banzatti. , S. . Bruderer. , F. . Lahuis. , I. . Pascucci. , Th. Henning, . P. . Ábrahám. , A. . Juhász. Topic:. Formation of. rocky planets from. planetesimals. Lecture by: C.P. Dullemond. Standard model of rocky planet formation. Start with a sea of planetesimals (~1...100 km). Mutual gravitational stirring, increasing „dynamic temperature“ of the planetesimal swarm.. Lecture by C.P. Dullemond. Institute for Theoretical Astrophysics. Heidelberg University. Image . Credit. : NASA. The Big Questions. After C. Mordasini. > 10 billion galaxies in the Universe. 100 billion stars in each. Projects. :. Exploring. . Planet. Formation. 2015 Sagan Summer Workshop. “. Exoplanetary. System Demographics:. Theory and Observations”. July 27, 2015. 1. Sagan Summer Workshop 2015. What is this group project about?. a. nd stellar multiplicity. Insights from recent surveys. Gaspard . Duchêne. (UC Berkeley, Obs. Grenoble). © NASA/JPL/Caltech. Planets in multiple systems?. © . LucasFilm. Ltd.. They must exist!. Growth of Protoplanets. Starter. Hubble images. https://www.youtube.com/watch?v=1lPXy-WKn7k&list=PLiuUQ9asub3Ta8mqP5LNiOhOygRzue8kN. https. ://. www.youtube.com/watch?v=PuY0GfGLFMU&list=PLiuUQ9asub3Ta8mqP5LNiOhOygRzue8kN. Topic:. Viscous accretion disks. Lecture by: C.P. Dullemond. shock. shock. The formation of a disk. Infalling matter collides with matter from the other side. Forms a shock. Free-fall kinetic energy is converted into heat. Insights from recent surveys. Gaspard . Duchêne. (UC Berkeley, Obs. Grenoble). © NASA/JPL/Caltech. Planets in multiple systems?. © . LucasFilm. Ltd.. They must exist!. Planets in multiple systems!. Zooming in on Star Formation. , Nafplio, June 14. , 2019. Galactic Scale Star Formation. What we know for sure now:. Feedback, and vertical pressure (. im. -)balance is crucial. The role of radial and vertical net mass transport is poorly understood.