Limits on the Abundance of Galactic Planets from Five Years of Planet Observations

We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short duration (∼ 1 day) deviation on the smooth, symmetric light curve produced by a single-lens. We find no such anomalies and infer that less than 1/3 of the ∼ 0.3 M⊙ stars that typically… CONTINUE READING