From pebbles to planets: towards new horizons in the formation of planets
Project: Research › Individual research project
Research areas and keywords
UKÄ subject classification
- Astronomy, Astrophysics and Cosmology
How do mm-sized particles grow past the bouncing barrier?
What is the Initial Mass Function of planetesimals?
How do the cores of gas giants form and evolve?
I will address these questions using a combination of novel ideas and computer simulations to model three critical stages of planet formation: 1) the growth of pebbles into rocks and boulders by coagulation and vapour condensation, 2) the gravitational collapse of clumps of rocks and boulders into planetesimals with an array of sizes, and 3) the long term growth of planetesimals as they grow to become cores of gas giants by accreting pebbles embedded in the gas. These investigations will form an important theoretical foundation for understanding the next generation of observations of protoplanetary disc pebbles, plan- etesimal belts, and planetary systems. The self-consistent models for the formation of planets resulting from this proposal will shed light on the spatial distribution of pebbles in gas discs around young stars (observable with the ALMA telescopes), on the initial state of planetesimal belts (crucial for understand- ing the evolution of debris discs observable with JWST and the asteroid and Kuiper belts), and on the formation and evolution of the wealth of exoplanetary systems detected in the near future (by astrometry with the Gaia satellite, by ground-based radial velocity surveys, and by direct imaging with E-ELT).
|Short title||From pebbles to planets|
|Effective start/end date||2012/01/01 → 2016/12/31|
- Anders Johansen - Lund Observatory - Department of Astronomy and Theoretical Physics (PI)
- Yang, Chao-Chin - Lund Observatory (Researcher)
- Bitsch, Bertram - Lund Observatory (Researcher)
- Katrin Ros - Lund Observatory (Research student)
- Wahlberg Jansson, Karl - Lund Observatory (Research student)
- Carrera, Daniel - Lund Observatory (Research student)
2012/08/01 → …
Project: Dissertation › Individual research project
Related research output
Research output: Thesis › Doctoral Thesis (compilation)