Division of Theoretical Astronomy, National Astronomical Observatory of Japan

Research Highlights

New simulations of terrestrial planet formation


It is widely accepted that planets form in a gaseous disk (or a protoplanetary disk) that surrounds the star. As the disk affects planet formation processes in several ways, the evolution and property of the disk is crucial in studying the planet formation. We study formation of terrestrial planets by numerical simulations that take into account recent developments of the disk evolution theory (e.g., magnetically driven disk winds). We found that the localized configuration of the terrestrial planets of the solar system can be reproduced by the radial drift of small bodies due to the effect of disk winds. We also showed that the origin of observed properties of close-in super-Earths can be explained by considering the realistic evolution of a protoplanetary disk (see figure).
(2018/06/18)

Ogihara, Kokubo et al. 2018, A&A, 612, L5
[ADS] [arXiv]

Ogihara, Kokubo et al. 2018, A&A, in press
[ADS] [arXiv]

Masahiro Ogihara (personal website)



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