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Abstract

We discuss two aspects of planet formation in this thesis. At first we present a model of type I migration which includes new results of outward migration of low mass planets. The second part contains SADFACE, a 1-dimensional vertically integrated disk model for planet population synthesis calculations. Results of the first part is that with the inclusion of thus modes of outward migration no artificial fudge factor to reduce the speed of type I migration is needed. We find two to three times as many ”cold” planets when we include outward migration than without. Results of the second part is that in the scope of the model we can find initial conditions that fit observed disks quite well. We also present likelihood of initial conditions which can be further used for planet population synthesis calculations. We also find that rotation and temperature of a cloud are correlated and can not be independently chosen.