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Related papers: Internal Structure of Massive Terrestrial Planets

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The final stage of planet formation is dominated by collisions between planetary embryos. The dynamics of this stage determine the orbital configuration and the mass and composition of planets in the system. In the solar system, late giant…

Earth and Planetary Astrophysics · Physics 2009-07-22 Robert A. Marcus , Sarah T. Stewart , Dimitar Sasselov , Lars Hernquist

The past decade has seen major progress in our understanding of terrestrial planet formation. Yet key questions remain. In this review we first address the growth of 100 km-scale planetesimals as a consequence of dust coagulation and…

Earth and Planetary Astrophysics · Physics 2018-12-05 Andre Izidoro , Sean N. Raymond

This paper reviews our current understanding of terrestrial planets formation. The focus is on computer simulations of the dynamical aspects of the accretion process. Throughout the chapter, we combine the results of these theoretical…

Earth and Planetary Astrophysics · Physics 2012-08-24 Alessandro Morbidelli , Jonathan I. Lunine , David P. O`brien , Sean N. Raymond , Kevin J. Walsh

With more than 260 extrasolar planetary systems discovered to-date, the search for habitable planets has found new grounds. Unlike our solar system, the stars of many of these planets are hosts to eccentric or close-in giant bodies. Several…

Astrophysics · Physics 2014-11-18 Nader Haghighipour

Terrestrial planets form in a series of dynamical steps from the solid component of circumstellar disks. First, km-sized planetesimals form likely via a combination of sticky collisions, turbulent concentration of solids, and gravitational…

Astrophysics · Physics 2009-11-13 Sean N. Raymond

We discuss our current understanding of the interior structure and thermal evolution of giant planets. This includes the gas giants, such as Jupiter and Saturn, that are primarily composed of hydrogen and helium, as well as the "ice…

Earth and Planetary Astrophysics · Physics 2014-11-20 Jonathan J. Fortney , Nadine Nettelmann

A planetary mass scale and a system of composition codes are presented for describing the geophysical characteristics of exoplanets and Solar System planets, dwarf planets, and spherical moons. The composition classes characterize the rock,…

Earth and Planetary Astrophysics · Physics 2017-05-30 David Russell

The inner solar system's modern orbital architecture provides inferences into the epoch of terrestrial planet formation; a ~100 Myr time period of planet growth via collisions with planetesimals and other proto-planets. While classic…

Earth and Planetary Astrophysics · Physics 2023-02-08 Matthew S. Clement , John E. Chambers , Nathan A. Kaib , Sean N. Raymond , Alan P. Jackson

Observational advancements are leading to increasingly precise measurements of super-Earth masses and radii. Such measurements are used in internal structure models to constrain interior compositions of super-Earths. It is now critically…

Earth and Planetary Astrophysics · Physics 2016-02-24 Scott W. Thomas , Nikku Madhusudhan

We review the state of the field of terrestrial planet formation with the goal of understanding the formation of the inner Solar System and low-mass exoplanets. We review the dynamics and timescales of accretion from planetesimals to…

Earth and Planetary Astrophysics · Physics 2015-06-18 Sean N. Raymond , Eiichiro Kokubo , Alessandro Morbidelli , Ryuji Morishima , Kevin J. Walsh

The first mass-estimate of an exoplanet around a Sun-like star, 51 Peg b and the first radius measurement of an exoplanet, HD209458b pointed to the challenges of understanding the atmosphere, interior, and evolution of exoplanets including…

Earth and Planetary Astrophysics · Physics 2021-12-15 Nadine Nettelmann , Diana Valencia

We present an inversion method based on Bayesian analysis to constrain the interior structure of terrestrial exoplanets, in the form of chemical composition of the mantle and core size. Specifically, we identify what parts of the interior…

Earth and Planetary Astrophysics · Physics 2015-04-27 Caroline Dorn , Amir Khan , Kevin Heng , Yann Alibert , James A. D. Connolly , Willy Benz , Paul Tackley

The abundances of elements in the Earth and the terrestrial planets provide the initial conditions for life and clues as to the history and formation of the Solar System. We follow the pioneering work of Bond et al. (2010) and combine…

Earth and Planetary Astrophysics · Physics 2015-06-11 Sebastian Elser , Michael R. Meyer , Ben Moore

Because of their common origin, it was assumed that the composition of planet building blocks should, to a first order, correlate with stellar atmospheric composition, especially for refractory elements. In fact, information on the relative…

Super-Mercuries, rocky exoplanets with bulk iron mass fraction of more than 60 per cent, appear to be preferentially hosted by stars with higher iron mass fraction than the Earth. It is unclear whether these iron-rich planets can form in…

Earth and Planetary Astrophysics · Physics 2023-05-03 J. Mah , B. Bitsch

The conditions that a planet must fulfill to be habitable are not precisely known. However, it is comparatively easier to define conditions under which a planet is very likely not habitable. Finding such conditions is important as it can…

Earth and Planetary Astrophysics · Physics 2015-06-17 Yann Alibert

We investigate an in-situ formation scenario for Earth-mass terrestrial planets in short-period, potentially habitable orbits around low-mass stars (M_star < 0.3 M_sun). We then investigate the feasibility of detecting these Earth-sized…

Earth and Planetary Astrophysics · Physics 2015-05-13 Ryan Montgomery , Greg Laughlin

Although the long-term numerical integrations of planetary orbits indicate that our planetary system is dynamically stable at least +/- Gyr, the dynamics of our Solar System includes both chaotic and stable motions: the large planets…

Astrophysics · Physics 2009-11-13 Áron Süli , Rudolf Dvorak , Florian Freistetter

The widespread prevalence of close-in, nearly coplanar super-Earth- and sub-Neptune-sized planets in multiple-planet systems was one of the most surprising results from the Kepler mission. By studying a uniform sample of Kepler "multis"…

Earth and Planetary Astrophysics · Physics 2017-11-15 Sarah Millholland , Songhu Wang , Gregory Laughlin

Several small dense exoplanets are now known, inviting comparisons to Earth and Venus. Such comparisons require translating their masses and sizes to composition models of evolved multi-layer-interior planets. Such theoretical models rely…

Earth and Planetary Astrophysics · Physics 2016-04-15 Li Zeng , Dimitar Sasselov , Stein Jacobsen