Predictions for Strong Lens Detections with the Nancy Grace Roman Space
  Telescope
  Strong gravitational lensing is an ideal tool for mapping the distribution of
dark matter and for testing the values of cosmological parameters. Forthcoming
surveys such as Euclid and the Rubin Observatory LSST should increase the
number of known strong lensing systems significantly, with for example over
100,000 such systems predicted in the Euclid wide survey. In this short
research note we predict that approximately 17,000 strong gravitational lenses
will also be detectible in the Nancy Grace Roman Space Telescope 2000 square
degree survey, using the LensPop gravitational lensing model. We present
predicted distributions in source and deflector redshifts, magnitudes, and
magnifications. Although this survey is not primarily designed as a strong
lensing detection experiment, it will still provide a large complementary
catalogue to shallower, wider-area forthcoming lensing discovery projects.
