Simple molecules in the inner regions of protoplanetary disk models

Bethlehem, Jelke (2018) Simple molecules in the inner regions of protoplanetary disk models. Bachelor's Thesis, Astronomy.

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Abstract

The chemical species in a protoplanetary disk react with each other. In the inner part of a protoplanetary disk molecules like ethyn (C2H2), methane (CH4) and hydro-gen cyanide (HCN) are constantly formed and destroyed. The aim of this theoret-ical study is to understand why there is a difference in the relative abundance for C2H2, CH4 and HCN between two protoplanetary disk models. These models are ProDiMo and a model made by Agúndez et al, both models claim that they are made for at typical T Tauri star. The difference between the relative abundance for C2H2, CH4 and HCN between these models is of several orders of magnitude. Comparing the models will be done by comparing the chemistry, thus the species, reactions, reaction rates and also by comparing the structure like disk size, temperature, mass and grain properties. The reason for the difference turned out to be the grain sizes for the surface of the disk and the timescales for the midplane of disk.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Kamp, I.E.E.
Degree programme:	Astronomy
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	06 Dec 2018
Last Modified:	23 Aug 2019 14:46
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/18907

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