FORMING CIRCUMBINARY PLANETS: N-BODY SIMULATIONS OF KEPLER-34

@article{Lines2014FORMINGCP,
  title={FORMING CIRCUMBINARY PLANETS: N-BODY SIMULATIONS OF KEPLER-34},
  author={S Lines and Zo{\"e} M. Leinhardt and S. Paardekooper and Cl{\'e}ment Baruteau and Philippe Jacqu. Thebault},
  journal={The Astrophysical Journal Letters},
  year={2014},
  volume={782}
}
Observations of circumbinary planets orbiting very close to the central stars have shown that planet formation may occur in a very hostile environment, where the gravitational pull from the binary should be very strong on the primordial protoplanetary disk. Elevated impact velocities and orbit crossings from eccentricity oscillations are the primary contributors to high energy, potentially destructive collisions that inhibit the growth of aspiring planets. In this work, we conduct high… 

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References

SHOWING 1-10 OF 21 REFERENCES
Influence of the circumbinary disk gravity on planetesimal accumulation in the Kepler-16 system
Context. Recent observations from NASA’s Kepler mission detected the first planets in circumbinary orbits. The question we try to answer is where these planets formed in the circumbinary disk and how
Circumbinary Planet Formation in the Kepler-16 System. I. N-body Simulations
The recently discovered circumbinary planets (Kepler-16 b, Kepler 34-b, Kepler 35-b) represent the first direct evidence of the viability of planet formation in circumbinary orbits. We report on the
A Planetesimal Accretion Zone in a Circumbinary Disk
We investigate the conditions for planetesimal accretion in a circumbinary disk. Until recently, it had been believed that only single solar-type stars might harbor planetary systems. On the other
Transiting circumbinary planets Kepler-34 b and Kepler-35 b
TLDR
The observed rate of circumbinary planets in this sample implies that more than ∼1% of close binary stars have giant planets in nearly coplanar orbits, yielding a Galactic population of at least several million.
Planetesimal and gas dynamics in binaries
Observations of extrasolar planets reveal that planets can be found in close binary systems, where the semi-major axis of the binary orbit is less than 20 AU. The existence of these planets
How Not to Build Tatooine: The Difficulty of In Situ Formation of Circumbinary Planets Kepler 16b, Kepler 34b, and Kepler 35b
We study planetesimal evolution in circumbinary disks, focusing on the three systems Kepler 16, 34, and 35 where planets have been discovered recently. We show that for circumbinary planetesimals, in
Relative velocities among accreting planetesimals in binary systems: the circumbinary case
We investigate classical planetesimal accretion in a binary star system of separation a b ⩽50 AU a b ⩽ 50 AU by numerical simulations, with particular focus on the region at a distance of 1 AU from
Planetesimal Accretion in Binary Star Systems
Planetesimal accretion in close binary systems is a complex process for the gravitational perturbations of the companion star on the planetesimal orbits. These perturbations excite high
Planetesimal Evolution in Circumbinary Gaseous Disks: A Hybrid Model
We study the dynamics of planetesimals embedded in a circumbinary protoplanetary disk. A hybrid numerical approach is developed where the evolution of the gaseous component of the disk is computed
PLANETESIMALS TO PROTOPLANETS. I. EFFECT OF FRAGMENTATION ON TERRESTRIAL PLANET FORMATION
We present results from a dozen direct N-body simulations of terrestrial planet formation with various initial conditions. In order to increase the realism of our simulations and investigate the
...
...