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Related papers: Forming Diverse Super-Earth Systems in Situ

200 papers

The demographics of Kepler planets provide a key testbed for models of planet formation and evolution, particularly for explaining the radius valley separating super-Earths and sub-Neptunes. A primordial interpretation based on differences…

Earth and Planetary Astrophysics · Physics 2026-02-13 Aritra Chakrabarty , Gijs D. Mulders , Artyom Aguichine , Natalie Batalha

We report relations between inner ($<1$ au) super Earths (planets with mass/radius between Earth and Neptune) and outer ($>1$ au) giant planets (mass $>0.3~M_{\rm J}$, or cold Jupiters) around Sun-like stars, based on data from both…

Earth and Planetary Astrophysics · Physics 2018-08-15 Wei Zhu , Yanqin Wu

During the late stage of planet formation when Mars-size cores appear, interactions among planetary cores can excite their orbital eccentricities, speed their merges and thus sculpture the final architecture of planet systems. This series…

Earth and Planetary Astrophysics · Physics 2015-03-13 Huigen Liu , Ji-lin Zhou , S. Wang

The California-Kepler Survey (CKS) catalog contains precise stellar and planetary properties for the \Kepler\ planet candidates, including systems with multiple detected transiting planets ("multis") and systems with just one detected…

We present the results of an extensive study of the detectability of Earth-sized planets and super-Earths in the habitable zones of cool and low-mass stars using transit timing variation method. We have considered a system consisting of a…

Earth and Planetary Astrophysics · Physics 2015-05-28 Nader Haghighipour , Sabrina Kirste

NASA's Kepler mission revealed that $\sim 30\%$ of Solar-type stars harbor planets with sizes between that of Earth and Neptune on nearly circular and co-planar orbits with periods less than 100 days. Such short-period compact systems are…

Earth and Planetary Astrophysics · Physics 2019-03-05 Sarah Millholland , Gregory Laughlin

Structure in the planet distribution provides an insight into the processes that shape the formation and evolution of planets. The Kepler mission has led to an abundance of statistical discoveries in regards to planetary radius, but the…

Earth and Planetary Astrophysics · Physics 2019-07-24 David J. Armstrong , Farzana Meru , Daniel Bayliss , Grant M. Kennedy , Dimitri Veras

The terrestrial planets formed by accretion of asteroid-like objects within the inner solar system's protoplanetary disk. Previous works have found that forming a small-mass Mars requires the disk to contain little mass beyond ~1.5 au…

Earth and Planetary Astrophysics · Physics 2023-06-16 Patryk Sofia Lykawka , Takashi Ito

We investigate dust substructure formation induced by two super-Earths migrating in a low-viscosity disk with single-size dust grains selected from the submillimeter to centimeter range of sizes. The orbital evolution of planets takes place…

Earth and Planetary Astrophysics · Physics 2026-05-05 Zijia Cui , Ewa Szuszkiewicz

Measuring precise planet masses, densities, and orbital dynamics in individual planetary systems is an important pathway toward understanding planet formation. The WASP-47 system has an unusual architecture that motivates a complex…

The chemical fingerprint of a planet reveals information about its formation history regarding when and where it formed. The water content of a planet can help to constrain its formation pathway: If the planet formed in the outer regions of…

Earth and Planetary Astrophysics · Physics 2024-01-10 Lena Chatziastros , Bertram Bitsch , Aaron David Schneider

Protoplanetary disks are thought to be truncated at orbital periods of around 10 days. Therefore, origin of rocky short period planets with $P < 10$ days is a puzzle. We propose that many of these planets may form through the Type-I…

Earth and Planetary Astrophysics · Physics 2019-04-17 Daniel Carrera , Eric B. Ford , Andre Izidoro

We analyze the effect of companion stars on the bulk density of 29 planets orbiting 15 stars in the Kepler field. These stars have at least one stellar companion within 2", and the planets have measured masses and radii, allowing an…

Earth and Planetary Astrophysics · Physics 2017-08-02 E. Furlan , S. B. Howell

The existence of planets orbiting a central binary star system immediately raises questions regarding their formation and dynamical evolution. Recent discoveries of circumbinary planets by the Kepler space telescope has shown that some of…

Earth and Planetary Astrophysics · Physics 2015-09-09 Wilhelm Kley , Nader Haghighipour

Direct imaging has revealed exoplanet systems hosting multiple wide-orbit Super-Jupiters, where planet-planet interactions can shape their long-term dynamical evolution. These strong perturbations may lead to orbital instability, raising…

Earth and Planetary Astrophysics · Physics 2025-10-17 Clarissa R. Do Ó , Jaehan Bae , Quinn M. Konopacky , Jayke S. Nguyen , Patrick Diamond , Krzysztof Goździewski , Dawid Jankowski

The majority of the discovered transiting circumbinary planets are located very near the innermost stable orbits permitted, raising questions about the origins of planets in such perturbed environments. Most favored formation scenarios…

Earth and Planetary Astrophysics · Physics 2019-06-12 Adam P. Sutherland , Kaitlin M. Kratter

Circumstantial evidence suggests that most known extra-solar planetary systems are survivors of violent dynamical instabilities. Here we explore how giant planet instabilities affect the formation and survival of terrestrial planets. We…

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

The discovery of seven ~Earth-mass planets, orbiting the 0.09 solar mass M-Dwarf TRAPPIST-1 captivated the public and sparked a proliferation of investigations into the system's origins. Among other properties, the resonant architecture of…

Earth and Planetary Astrophysics · Physics 2024-11-06 Matthew S. Clement , Elisa V. Quintana , Kevin B. Stevenson

Radial velocity (RV) measurements of transiting multiplanet systems allow us to understand the densities and compositions of planets unlike those in the Solar System. Kepler-102, which consists of 5 tightly packed transiting planets, is a…

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