Essays about: "protoplanetary disk"

Showing result 6 - 10 of 14 essays containing the words protoplanetary disk.

1. 6. Mean Motion Resonances and Planetary Scattering

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

   Author : Erik Dahlöf; [2018]
   Keywords : mean motion resonance; orbit resonance; planetary dynamics; planet-planet scattering; planetary scattering; eccentricity; inclination; planet systems; disturbing force; orbit dynamics; orbital elements; planets; exoplanets; scattering phase; relaxation; dynamical instabilities; N-body; protoplanetary disk; planet migration; eccentricity damping; inclination damping; planet-disk interactions; Physics and Astronomy;

   Abstract : The observed distribution of giant exoplanet eccentricities and inclinations are significantly larger than what is measured for their Solar system analogues, Jupiter and Saturn. Since the first observations of exoplanets, planet-planet scattering has been proposed as a possible mechanism for exciting the eccentricities and inclinations of giant exoplanets. READ MORE

3. 7. Planet migration in evolving protoplanetary discs

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

   Author : Linn Eriksson; [2018]
   Keywords : Planets and satellites: formation; Protoplanetary discs: evolution; Planet-disc interactions; Physics and Astronomy;

   Abstract : The rate of migration and accretion onto protoplanets is greatly influenced by the structure of the surrounding protoplanetary disc. This structure changes with time as the disc evolves on a million year timescale, implying that the process of planet formation might look very different depending on when it was initiated. READ MORE

4. 8. Can planet formation explain the observed differences in the chemical composition of binary stars?

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Rebecca Forsberg; [2017]
   Keywords : binary stars; planet formation; protoplanetary disc; Physics and Astronomy;

   Abstract : A suggested explanation for the observed differences in chemical abundances in binary stars has been planet formation (e.g. Tucci Maia et al. 2014). READ MORE

5. 9. Fast-forward the Sedimentation of Solid Particles in Protoplanetary Disks

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Eric Andersson; [2017]
   Keywords : protoplanetary disk sedimentation simulation particle-mesh adaptive particles; Physics and Astronomy;

   Abstract : Numerical simulations have become an essential tool for studying particle-gas systems. One such system is the protoplanetary disk consisting of vast number of solid particles interacting with the surrounding gas. READ MORE

6. 10. Giant planet formation around HR8799

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

   Author : Dan Wallsby; [2017]
   Keywords : HR8799; Planet formation; Protoplanetary disks; Giant planets; Astronomy; Migration; Dynamics; Physics and Astronomy;

   Abstract : In the thriving field of exoplanet research new discoveries are made all the time, and while most of the observed systems can be explained with classical planet formation models - some are much harder to explain. When stars form they are often surrounded by the remaining material of the nebulae they formed from. READ MORE