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Related papers: The Compositional Diversity of Extrasolar Terrestr…

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Understanding the concept of habitability is related to an evolutionary knowledge of the particular planet-in-question. Additional indications so-called "systemic aspects" of the planetary system as a whole governs a particular planet's…

This review is focused on describing the logic by which we make predictions of exoplanetary compositions and mineralogies, and how these processes could lead to compositional diversity among rocky exoplanets. We use these predictions to…

Earth and Planetary Astrophysics · Physics 2024-04-25 Claire Marie Guimond , Haiyang Wang , Fabian Seidler , Paolo Sossi , Aprajit Mahajan , Oliver Shorttle

Approximately half of the extrasolar planets (exoplanets) with radii less than four Earth radii are in orbits with short periods. Despite their sheer abundance, the compositions of such planets are largely unknown. The available evidence…

We model the assembly of planets from planetary embryos under the conditions suggested by various scenarios for the formation of the planetary system around the millisecond pulsar B1257+12. We find that the most likely models fall at the…

Earth and Planetary Astrophysics · Physics 2015-05-13 Brad Hansen , Hsin-Yi Shih , Thayne Currie

The Jupiter-Saturn chaotic excitation (JSCE) scenario proposes that the protoplanetary disk was dynamically excited and depleted beyond ~1-1.5 au in a few Myr, offering a new and plausible explanation for several observed properties of the…

Earth and Planetary Astrophysics · Physics 2026-02-20 Patryk Sofia Lykawka , Takashi Ito

This study considers the characteristics of planetary systems with giant planets based on a population-level analysis of the California Legacy Survey planet catalog. We identified three characteristics common to hot Jupiters. First, while…

Earth and Planetary Astrophysics · Physics 2023-10-04 Jon Zink , Andrew Howard

Super Earths and mini Neptunes likely have a wide range of atmospheric compositions, ranging from low-molecular mass atmospheres of H2 to higher molecular atmospheres of water, CO2, N2, or other species. Here, we systematically investigate…

Earth and Planetary Astrophysics · Physics 2017-02-15 Xi Zhang , Adam P. Showman

The heavy element content of giant exoplanets, inferred from structure models based on their radius and mass, often exceeds predictions based on classical core accretion. Pebble drift, coupled with volatile evaporation, has been proposed as…

Earth and Planetary Astrophysics · Physics 2026-01-28 Barry O'Donovan , Bertram Bitsch

The discovery of Jupiter-mass planets in close orbits about their parent stars has challenged models of planet formation. Recent observations have shown that a number of these planets have highly inclined, sometimes retrograde orbits about…

Earth and Planetary Astrophysics · Physics 2015-05-20 James Guillochon , Enrico Ramirez-Ruiz , Douglas N. C. Lin

The discovery of close orbiting extrasolar giant planets led to extensive studies of disk planet interactions and the forms of migration that can result as a means of accounting for their location. Early work established the type I and type…

Astrophysics · Physics 2007-05-23 J. C. B. Papaloizou , R. P. Nelson , W. Kley , F. S. Masset , P. Artymowicz

We quantify the utility of large radial velocity surveys for constraining theoretical models of Type II migration and protoplanetary disk physics. We describe a theoretical model for the expected radial distribution of extrasolar planets…

Astrophysics · Physics 2009-06-23 Philip J. Armitage

Recent improvements to GPU hardware and the symplectic N-body code GENGA allow for unprecedented resolution in simulations of planet formation. In this paper, we report results from high-resolution N-body simulations of terrestrial planet…

Earth and Planetary Astrophysics · Physics 2021-09-09 Jason Man Yin Woo , Ramon Brasser , Simon L. Grimm , Miles L. Timpe , Joachim Stadel

Many evolutionary models of giant exoplanets still rely on simplifying assumptions that are no longer adequate given detailed constraints from Jupiter, Saturn, and modern exoplanet observations. Here, we identify the key physical…

Earth and Planetary Astrophysics · Physics 2026-01-29 Ankan Sur , Roberto Tejada Arevalo , Adam Burrows , Yi-Xian Chen

With n-body simulations, we model terrestrial circumbinary planet (CBP) formation with an initial surface density profile motivated by hydrodynamic circumbinary gas disc simulations. The binary plays an important role in shaping the initial…

Earth and Planetary Astrophysics · Physics 2021-09-01 Anna C. Childs , Rebecca G. Martin

We review the models and results of simulations of self-gravitating, gaseous protoplanetary disks in binary star systems. These models have been calculated by three different groups with three different computational methods, two…

Astrophysics · Physics 2007-05-23 Lucio Mayer , Alan Boss , Andrew F. Nelson

Although current sensitivity limits are such that true Solar System analogs remain challenging to detect, numerous planetary systems have been discovered that are very different from our own Solar System. The majority of systems harbor a…

Earth and Planetary Astrophysics · Physics 2016-02-03 Niraj K. Inamdar , Hilke E. Schlichting

The discovery of Exoplanetary Systems has challenged some of the theories of planet formation, which assume unperturbed evolution of the host star and its planets. However, in star clusters the interactions with flyby stars and binaries may…

Earth and Planetary Astrophysics · Physics 2020-06-17 Yi-Han Wang , Rosalba Perna , Nathan W. C. Leigh

The host stars of extrasolar planets tend to be metal-rich. We have examined the data for these stars for evidence of trends in other galactic parameters, without success. However, several ESP hosts are likely to be members of the thick…

Astrophysics · Physics 2007-05-23 I. N. Reid

Most stars are in multiple systems, with the majority of those being binaries. A large number of planets have been confirmed in binary stars and therefore it is important to understand their formation and dynamical evolution. We perform…

Earth and Planetary Astrophysics · Physics 2024-08-15 Matthew Teasdale , Dimitris Stamatellos

Recent observations of rocky super-Earths have revealed an apparent wider distribution of Fe/Mg ratios, or core to mantle ratios, than the planets in our Solar System. This study aims to understand how much of the chemical diversity in the…

Earth and Planetary Astrophysics · Physics 2020-03-04 Jennifer Scora , Diana Valencia , Alessandro Morbidelli , Seth A. Jacobson