Prospects for detecting decreasing exoplanet frequency with main-sequence age using PLATO

Dimitri Veras, David J. A. Brown, Alexander Mustill, Don Pollacco

Research output: Contribution to journalArticlepeer-review


The space mission PLATO will usher in a new era of exoplanetary science by expanding our current inventory of transiting systems and constraining host star ages, which are currently highly uncertain. This capability might allow PLATO to detect changes in planetary system architecture with time, particularly because planetary scattering due to Lagrange instability may be triggered long after the system was formed. Here, we utilize previously published instability time-scale prescriptions to determine PLATO's capability to detect a trend of decreasing planet frequency with age for systems with equal-mass planets. For two-planet systems, our results demonstrate that PLATO may detect a trend for planet masses which are at least as massive as super-Earths. For systems with three or more planets, we link their initial compactness to potentially detectable frequency trends in order to aid future investigations when these populations will be better characterized.
Original languageEnglish
Pages (from-to)67-72
JournalMonthly Notices of the Royal Astronomical Society
Issue number1
Publication statusPublished - 2015

Subject classification (UKÄ)

  • Astronomy, Astrophysics and Cosmology

Free keywords

  • techniques: photometric
  • telescopes
  • celestial mechanics
  • planets and
  • satellites: dynamical evolution and stability
  • stars: evolution
  • stars:
  • solar-type


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