Wide-Field InfraRed Survey Telescope (WFIRST) Mission and new opportunities in time domain and multmessenger astrophysics

The Wide-Field InfraRed Survey Telescope (WFIRST) is a NASA space mission in study for launch in 2025. It has a 2.4 m telescope, wide-field IR instrument operating in the 0.48 - 2.0 micron range and an exoplanet imaging coronagraph instrument operating in the 400 - 1000 nm range. With a wide field of view of 0.28 sq deg, excellent sensitivity and infrared bandpass, WFIRST will provide unique opportunities in time domain and multimessenger astrophysics. In this presentation we will describe the capabilities and potential science return for WFIRST observations of infrared counterparts to gravitational wave and transient sources.