English
Related papers

Related papers: Mercury-Ar$\chi$es: a high-performance n-body code…

200 papers

A large population of planetary candidates in short-period orbits have been found through transit searches. Radial velocity surveys have also revealed several Jupiter-mass planets with highly eccentric orbits. Measurements of the…

Earth and Planetary Astrophysics · Physics 2015-06-12 Shang-Fei Liu , James Guillochon , Douglas N. C. Lin , Enrico Ramirez-Ruiz

Models of planetary core growth by either planetesimal or pebble accretion are traditionally disconnected from the models of dust evolution and formation of the first gravitationally-bound planetesimals. The state-of-the-art models…

Earth and Planetary Astrophysics · Physics 2022-12-28 Tommy Chi Ho Lau , Joanna Drążkowska , Sebastian M. Stammler , Tilman Birnstiel , Cornelis P. Dullemond

The accretion of pebbles on planetary cores has been widely studied in recent years and is found to be a highly effective mechanism for planetary growth. While most studies assume planetary cores as an initial condition in their simulation,…

Earth and Planetary Astrophysics · Physics 2021-02-10 Oliver Voelkel , Rogerio Deienno , Katherine Kretke , Hubert Klahr

Numerous circumbinary planets have been discovered in surveys of transiting planets. Often, these planets are found to orbit near to the zone of dynamical instability, close to the central binary. The existence of these planets has been…

Earth and Planetary Astrophysics · Physics 2023-03-29 Gavin A. L. Coleman , Richard P. Nelson , Amaury H. M. J. Triaud

The ubiquity of planets and diversity of planetary systems reveal planet formation encompass many complex and competing processes. In this series of papers, we develop and upgrade a population synthesis model as a tool to identify the…

Earth and Planetary Astrophysics · Physics 2015-06-16 S. Ida , D. N. C. Lin , M. Nagasawa

In this work, we adapt a module for planetary formation within the hydrodynamic code FARGO3D. Planetary formation is modeled by a solid core accretion scenario, with the core growing in oligarchic regime. The initial superficial density of…

Earth and Planetary Astrophysics · Physics 2019-10-18 L A DePaula , T A Michtchenko , P A Sousa-Silva

Pairwise collisions between terrestrial embryos are the dominant means of accretion during the last stage of planet formation. Hence, their realistic treatment in N-body studies is critical to accurately model the formation of terrestrial…

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

Understanding the formation and dynamical evolution of habitable planets in extrasolar planetary systems is a challenging task. In this respect, systems with multiple giant planets and/or multiple stars present special complications. The…

Astrophysics · Physics 2009-11-13 Nader Haghighipour

We review the problem of the formation of terrestrial planets, with particular emphasis on the interaction of dynamical and geochemical models. The lifetime of gas around stars in the process of formation is limited to a few million years…

Earth and Planetary Astrophysics · Physics 2009-06-25 Jonathan I. Lunine , David P. O'Brien , Sean N. Raymond , Alessandro Morbidelli , Thomas Quinn , Amara Graps

Massive planetary cores ($\sim 10$ Earth masses) trigger rapid gas accretion to form gas giant planets \rev{such as} Jupiter and Saturn. We investigate the core growth and the possibilities for cores to reach such a critical core mass. At…

Earth and Planetary Astrophysics · Physics 2015-05-28 Hiroshi Kobayashi , Hidekazu Tanaka , Alexander V. Krivov

The formation of planetesimals was an integral part of the cascading series of processes that built the terrestrial planets. To illuminate planetesimal formation, here we develop a refined thermal evolution model to calculate the formation…

Earth and Planetary Astrophysics · Physics 2026-02-25 James Bryson , Hannah Sanderson , Francis Nimmo , Sanjana Sridhar , Gregory Brennecka , Yves Marrocchi , Jason Terry

As accretion in protoplanetary disks is enabled by turbulent viscosity, the border between active and inactive (dead) zones constitutes a location where there is an abrupt change in the accretion flow. The gas accumulation that ensues…

Earth and Planetary Astrophysics · Physics 2009-11-13 W. Lyra , A. Johansen , A. Zsom , H. Klahr , N. Piskunov

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…

Earth and Planetary Astrophysics · Physics 2015-02-25 M. P. Ronco , A. Thiabaud , U. Marboeuf , Y. Alibert , G. C. de Elía , O. M. Guilera

The Kepler mission has recently discovered a number of exoplanetary systems, such as Kepler-11 and Kepler-32, in which ensembles of several planets are found in very closely packed orbits (often within a few percent of an AU of one…

Earth and Planetary Astrophysics · Physics 2015-06-22 T. O. Hands , R. D. Alexander , W. Dehnen

We present a novel, model-independent framework for studying the architecture of an exoplanetary system at the system level. This framework allows us to characterise, quantify, and classify the architecture of an individual planetary…

Earth and Planetary Astrophysics · Physics 2023-02-15 Lokesh Mishra , Yann Alibert , Stéphane Udry , Christoph Mordasini

At least 30\% of main sequence stars host planets with sizes of between 1 and 4 Earth radii and orbital periods of less than 100 days. We use N-body simulations including a model for gas-assisted pebble accretion and disk--planet tidal…

(Abridged) Most massive stars are located in multiple systems. The modeling of disk fragmentation, a possible mechanism leading to stellar multiplicity, relies on parallel 3D simulation codes whose agreement remains to be evaluated. Using…

Solar and Stellar Astrophysics · Physics 2023-04-05 Raphaël Mignon-Risse , André Oliva , Matthias González , Rolf Kuiper , Benoît Commerçon

According to the canonical planet formation theory, planets form "in-situ" within a planetesimal disk via runaway and oligarchic growth. This theory, however, cannot naturally account for the formation timescale of ice giants or the…

Earth and Planetary Astrophysics · Physics 2026-01-29 Tenri Jinno , Takayuki R. Saitoh , Yoko Funato , Junichiro Makino

Computing the mass of planetary envelopes and the critical mass beyond which planets accrete gas in a runaway fashion is important when studying planet formation, in particular for planets up to the Neptune mass range. This computation…

Earth and Planetary Astrophysics · Physics 2019-06-05 Yann Alibert , Julia Venturini
‹ Prev 1 3 4 5 6 7 10 Next ›