Out of One, Many: Distinguishing Time Delays from Lensed Supernovae
  Gravitationally lensed Type Ia supernovae are an emerging probe with great
potential for constraining dark energy, spatial curvature, and the Hubble
constant. The multiple images and their time delayed and magnified fluxes may
be unresolved, however, blended into a single lightcurve. We demonstrate
methods without a fixed source template matching for extracting the individual
images, determining whether there are one (no lensing) or two or four (lensed)
images, and measuring the time delays between them that are valuable
cosmological probes. We find 100% success for determining the number of images
for time delays greater than $\sim10$ days.
