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Related papers: Binary Formation in Planetesimal Disks I. Equal Ma…

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Planet formation around one component of a tight, eccentric binary system such as $\gamma$ Cephei (with semimajor axis around 20 AU) is theoretically challenging because of destructive high-velocity collisions between planetesimals. Despite…

Earth and Planetary Astrophysics · Physics 2021-08-18 Kedron Silsbee , Roman R. Rafikov

The search for satellites around exoplanets represents one of the greatest challenges in advancing the characterization of planetary systems. Currently, we can only detect massive satellites, which resemble additional planetary companions…

Earth and Planetary Astrophysics · Physics 2023-11-06 C. Lazzoni , K. W. Rice , A. Zurlo , S. Hinkley , S. Desidera

More than half of Solar-type stars are found in binary systems. The numbers of exoplanets within binary systems in s-type orbits now numbers over 700. However, whilst the numbers have increased, there still does not exist a global model of…

Earth and Planetary Astrophysics · Physics 2026-03-27 Gavin A. L. Coleman

Circumbinary planets have been observed at orbital radii where binary perturbations may have significant effects on the gas disk structure, on planetesimal velocity dispersion, and on the coupling between turbulence and planetesimals. Here,…

Earth and Planetary Astrophysics · Physics 2015-06-16 Rebecca G. Martin , Philip J. Armitage , Richard D. Alexander

Formation models in which terrestrial bodies grow via the pairwise accretion of planetesimals have been reasonably successful at reproducing the general properties of the solar system, including small body populations. However, planetesimal…

Earth and Planetary Astrophysics · Physics 2023-07-20 Spencer C. Wallace , Thomas R. Quinn

Spurred by the discovery of numerous exoplanets in multiple systems, binaries have become in recent years one of the main topics in planet formation research. Numerous studies have investigated to what extent the presence of a stellar…

Earth and Planetary Astrophysics · Physics 2017-11-29 Ph. Thebault , N. Haghighipour

The intermediate phases of planet formation are not directly observable due to lack of emission from planetesimals. Planet formation is, however, a dynamically active process resulting in collisions between the evolving planetesimals and…

Earth and Planetary Astrophysics · Physics 2015-06-18 Zoë M. Leinhardt , Jack Dobinson , Philip J. Carter , Stefan Lines

In this paper we extend our numerical method for simulating terrestrial planet formation from Leinhardt and Richardson (2005) to include dynamical friction from the unresolved debris component. In the previous work we implemented a rubble…

Earth and Planetary Astrophysics · Physics 2015-05-13 Z. M. Leinhardt , D. C. Richardson , G. Lufkin , J. Haseltine

Detections of planets in eccentric, close (separations of ~20 AU) binary systems such as \alpha Cen or \gamma Cep provide an important test of planet formation theories. Gravitational perturbations from the companion are expected to excite…

Earth and Planetary Astrophysics · Physics 2016-08-31 Kedron Silsbee , Roman R. Rafikov

The existence of planets born in environments highly perturbed by a stellar companion represents a major challenge to the paradigm of planet formation. In numerical simulations, the presence of a close binary companion stirs up the relative…

Earth and Planetary Astrophysics · Physics 2015-06-11 Stefano Meschiari

The discovery that many trans-neptunian objects exist in pairs, or binaries, is proving invaluable for shedding light on the formation, evolution and structure of the outer Solar system. Based on recent systematic searches it has been…

Astrophysics · Physics 2007-05-23 Sergey A. Astakhov , Ernestine A. Lee , David Farrelly

Continuing our study of the effects of secular resonances on the formation of terrestrial planets in moderately close binary stars, we present here the results of an extensive numerical simulations of the formation of these objects.…

Earth and Planetary Astrophysics · Physics 2025-07-29 Nader Haghighipour , Michael Andrews

We explore three-body binary formation (3BBF), the formation of a bound system via gravitational scattering of three initially unbound bodies (3UB), using direct numerical integrations. For the first time, we consider systems with unequal…

Solar and Stellar Astrophysics · Physics 2024-05-24 Dany Atallah , Newlin C. Weatherford , Alessandro A. Trani , Frederic Rasio

Asteroid binaries found amongst the Near-Earth objects are believed to have formed from rotational fission. In this paper, we aim to study the dynamical evolution of asteroid systems the moment after fission. The initial condition is…

Earth and Planetary Astrophysics · Physics 2022-09-14 Alex Ho , Margrethe Wold , Mohammad Poursina , John T. Conway

We present the results of planet formation N-body simulations based on a comprehensive physical model that includes planetary mass growth through mutual embryo collisions and planetesimal/boulder accretion, viscous disc evolution, planetary…

Earth and Planetary Astrophysics · Physics 2016-02-17 Gavin A. L. Coleman , Richard P. Nelson

The formation of planetesimals in protoplanetary disks due to collisional sticking of smaller dust aggregates has to face at least two severe obstacles, namely the rapid loss of material due to radial inward drift and particle fragmentation…

Astrophysics · Physics 2009-11-13 F. Brauer , Th. Henning , C. P. Dullemond

We explore planet formation in binary systems around the central star where the protoplanetary disk plane is highly inclined with respect to the companion star orbit. This might be the most frequent scenario for binary separations larger…

Earth and Planetary Astrophysics · Physics 2015-05-13 F. Marzari , P. Thebault , H. Scholl

To date, several exoplanets have been discovered orbiting stars with close binary companions (a~<30 AU). The fact that planets can form in these dynamically challenging environments implies that planet formation must be a robust process.…

Earth and Planetary Astrophysics · Physics 2015-06-23 Hannah Jang-Condell

In the conventional theory of planet formation, it is assumed that protoplanetary disks are axisymmetric and have a smooth radial profile. However, recent radio observations of protoplanetary disks have revealed that many of them have…

Earth and Planetary Astrophysics · Physics 2023-08-11 Tenri Jinno , Takayuki R. Saitoh , Yota Ishigaki , Junichiro Makino

Terrestrial planet formation theory is at a bottleneck, with the growing realization that pairwise collisions are treated far too simply. Here, and in our companion paper (Cambioni et al. 2019) that introduces the training methodology, we…

Earth and Planetary Astrophysics · Physics 2020-02-28 Alexandre Emsenhuber , Saverio Cambioni , Erik Asphaug , Travis S. J. Gabriel , Stephen R. Schwartz , Roberto Furfaro