What Fraction of Sun-like Stars have Planets?

  title={What Fraction of Sun-like Stars have Planets?},
  author={Charles H. Lineweaver and Daniel Grether},
  journal={The Astrophysical Journal},
The radial velocities of ~1800 nearby Sun-like stars are currently being monitored by eight high-sensitivity Doppler exoplanet surveys. Approximately 90 of these stars have been found to host exoplanets massive enough to be detectable. Thus, at least ~5% of target stars possess planets. If we limit our analysis to target stars that have been monitored the longest (~15 years), ~11% possess planets. If we limit our analysis to stars monitored the longest and whose low surface activity allows the… Expand

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