eprintid: 31189
rev_number: 17
eprint_status: archive
userid: 6457
dir: disk0/00/03/11/89
datestamp: 2022-02-03 08:51:10
lastmod: 2022-02-10 06:50:42
status_changed: 2022-02-03 08:51:10
type: doctoralThesis
metadata_visibility: show
creators_name: Völkel, Oliver
title: On the Continuous Improvement of Global Planet Formation Models - The Consistent Formation of Planetary Embryos
subjects: ddc-520
divisions: i-130001
adv_faculty: af-13
abstract: Our knowledge on the population of exoplanets and circumstellar disks has increased drastically
in the last decades. Yet many processes during the formation of planets, especially in the
intermediate size range, are unobservable. This thesis focuses on linking the evolution of a
circumstellar disk with a final set of planets in a globally self consistent framework. The number
of embryos and their formation in current planet formation models are subject to assumptions and
not to physical modeling. This inconsistency currently marks the single largest blind spot in global
planet formation modeling. Within four consecutive publications, I present key improvements
in global planet formation modeling. Namely the evolution of dust and pebbles, the formation
of planetesimals and the formation of planetary embryos. Within this thesis I present a global
planet formation model that self-consistently tracks the formation of planets from an initial
disk of gas and dust during its entire lifetime. For the first time, this is achieved without far
reaching assumptions on initially placed planetesimals or planetary embryos. I show that the
disk consistent treatment of planetary embryo formation results in multiple distinct embryo
generations during the lifetime of the circumstellar disk. A clear dichotomy between planets that
form in different generations is found. The generation from which an embryo originates has far
reaching implications on its composition and final planetary properties.
date: 2022
id_scheme: DOI
id_number: 10.11588/heidok.00031189
ppn_swb: 1788906829
own_urn: urn:nbn:de:bsz:16-heidok-311899
date_accepted: 2021-12-16
advisor: HASH(0x55fc36c4aa88)
language: eng
bibsort: VOLKELOLIVONTHECONTI2022
full_text_status: public
place_of_pub: Heidelberg
citation:   Völkel, Oliver  (2022) On the Continuous Improvement of Global Planet Formation Models - The Consistent Formation of Planetary Embryos.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/31189/2/On_the_continuous_improvement_of_global_planet_formation_models_Oliver_Voelkel_cover_backside-1.pdf