Adding Context to JWST Surveys with Current and Future 21cm Radio
  Observations
  Infrared and radio observations of the Epoch of Reionization promise to
revolutionize our understanding of the cosmic dawn, and major efforts with the
JWST, MWA and HERA are underway. While measurements of the ionizing sources
with infrared telescopes and the effect of these sources on the intergalactic
medium with radio telescopes \emph{should} be complementary, to date the wildly
disparate angular resolutions and survey speeds have made connecting proposed
observations difficult. In this paper we develop a method to bridge the gap
between radio and infrared studies. While the radio images may not have the
sensitivity and resolution to identify individual bubbles with high fidelity,
by leveraging knowledge of the measured power spectrum we are able to separate
regions that are likely ionized from largely neutral, providing context for the
JWST observations of galaxy counts and properties in each. By providing the
ionization context for infrared galaxy observations, this method can
significantly enhance the science returns of JWST and other infrared
observations.
