Chemical composition of Earth-like planets

Ronco, M.P.; Thiabaud, Amaury; Marboeuf, Ulysse; Alibert, Yann; de Elìa, G.C.; Guilera, O.M. (2015). Chemical composition of Earth-like planets. Boletín de la Asociación Argentina de Astronomía, 57, pp. 251-253. Asociación Argentina de Astronomía, La Plata, Argentina

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Models of planet formation are mainly focused on the accretion and dynamical processes of the planets, neglecting their chemical composition. In this work, we calculate the condensation sequence of the different chemical elements for a low-mass protoplanetary disk around a solar-type star. We incorporate this sequence of chemical elements (refractory and volatile elements) in our semi-analytical model of planet formation which calculates the formation of a planetary system during its gaseous phase. The results of the semi-analytical model (final distributions of embryos and planetesimals) are used as initial conditions to develope N-body simulations that compute the post-oligarchic formation of terrestrial-type planets. The results of our simulations show that the chemical composition of the planets that remain in the habitable zone has similar characteristics to the chemical composition of the Earth. However, exist differences that can be associated to the dynamical environment in which they were formed.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences > Theoretical Astrophysics and Planetary Science (TAPS)
08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences
08 Faculty of Science > Physics Institute

UniBE Contributor:

Thiabaud, Amaury; Marboeuf, Ulysse and Alibert, Yann

Subjects:

500 Science > 520 Astronomy
500 Science > 530 Physics

Publisher:

Asociación Argentina de Astronomía, La Plata, Argentina

Language:

English

Submitter:

Amaury Thiabaud

Date Deposited:

14 Nov 2016 15:55

Last Modified:

14 Nov 2016 15:55

ArXiv ID:

1502.06870v1

Uncontrolled Keywords:

Planets and satellites: terrestrial planets, formation, composition

BORIS DOI:

10.7892/boris.89102

URI:

https://boris.unibe.ch/id/eprint/89102

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