Survivability of planetary systems in young and dense star clusters

  title={Survivability of planetary systems in young and dense star clusters},
  author={Arjen van Elteren and Simon F. Portegies Zwart and Inti Pelupessy and Maxwell Xu Cai and Stephen L. W. McMillan},
  journal={Astronomy \& Astrophysics},
Aims. We perform a simulation using the Astrophysical Multipurpose Software Environment of the Orion Trapezium star cluster in which the evolution of the stars and the dynamics of planetary systems are taken into account. Methods. The initial conditions from earlier simulations were selected in which the size and mass distributions of the observed circumstellar disks in this cluster are satisfactorily reproduced. Four, five, or size planets per star were introduced in orbit around the 500 solar… 
On the survival of resonant and non-resonant planetary systems in star clusters
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Formation of hot Jupiters through disk migration and evolving stellar tides
  • R. Heller
  • Physics, Geology
    Astronomy & Astrophysics
  • 2019
Since the discovery of Jupiter-sized planets in extremely close orbits around Sun-like stars, several mechanisms have been proposed to produce these “hot Jupiters”. Here we address their pile-up at