Program: GN-2021B-Q-102

Fast Radio Bursts (FRBs) are an enigmatic class of extragalactic objects, whose study so far has been almost exclusively the domain of radio telescopes. Yet, given the plethora of models proposed, coincident observations at other wave-bands is considered essential for forward progress. With the commissioning and operation of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) experiment, nearly 1000 FRBs have been detected including several tens that repeat. One of these -- FRB 180916 -- is quasi-periodic (at approximately 16 days) and has been localized with VLBI to a z=0.03 galaxy. With this request, we wish to shadow CHIME observations of this FRB during its ~30min transits and coincident with the FRB period to search for contemporaneous optical emission. The Alopeke fast imager on the 8m Gemini-N telescope is the optimal instrument for this experiment, especially when combined with Gemini's flexible scheduling.