The Impact of Stellar Clustering on the Observed Multiplicity and Orbital Periods of Planetary Systems

  title={The Impact of Stellar Clustering on the Observed Multiplicity and Orbital Periods of Planetary Systems},
  author={Steven N. Longmore and M{\'e}lanie Chevance and J. M. Diederik Kruijssen},
  journal={The Astrophysical Journal Letters},
It has recently been shown that stellar clustering plays an important role in shaping the properties of planetary systems. We investigate how the multiplicity distributions and orbital periods of planetary systems depend on the 6D phase space density of stars surrounding planet host systems. We find that stars in high stellar phase space density environments (overdensities) have a factor of 1.6–2.0 excess in the number of single-planet systems compared to stars in low stellar phase space… 
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