PopSyCLE: A New Population Synthesis Code for Compact Object Microlensing Events

Understand

We present a new Milky Way microlensing simulation code, dubbed PopSyCLE (Population Synthesis for Compact object Lensing Events).

• PopSyCLE is the first resolved microlensing simulation to include a compact object distribution derived from numerical supernovae explosion models and both astrometric and photometric microlensing effects.
• We demonstrate the capabilities of PopSyCLE by investigating the optimal way to find black holes (BHs) with microlensing.
• Candidate BHs have typically been selected from wide-field photometric microlensing surveys, such as OGLE, by selecting events with long Einstein crossing times ($t_E>120$ days).