- 1 - Chemistry of Atmospheres Formed during Accretion of the Earth and Other Terrestrial Planets

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  • Laura Schaefer
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منابع مشابه

Chemistry of atmospheres formed during accretion of the Earth and other terrestrial planets

Article history: Received 17 September 2009 Revised 19 January 2010 Accepted 25 January 2010 Available online 4 February 2010

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High-resolution Simulations of the Final Assembly of Earth-like Planets 1: Terrestrial Accretion and Dynamics

The final stage in the formation of terrestrial planets consists of the accumulation of ∼ 1000-km “planetary embryos” and a swarm of billions of 1-10 km “planetesimals.” During this process, water-rich material is accreted by the terrestrial planets via impacts of water-rich bodies from beyond roughly 2.5 AU. We present results from five high-resolution dynamical simulations. These start from 1...

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The majority of discovered exoplanetary systems harbour a new class of planets, bodies that are typically several times more massive than the Earth but that orbit their host stars well inside the orbit of Mercury. The origin of these close-in super-Earths and mini-Neptunes is one of the major unanswered questions in planet formation. Unlike the Earth, whose atmosphere contains less than 10−6 of...

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تاریخ انتشار 2010