  Boger fluids are viscoelastic liquids having constant viscosity for a broad
range of shear rates. They are commonly used to separate the effects of liquid
elasticity from viscosity in any experiment. We present an experimental study
on the shock-induced aerobreakup of a Boger fluid droplet in the Shear-induced
entrainment (SIE) and catastrophic breakup regime (Weber number ranging from ~
800 to 5000). The results are compared with the aerobreakup of a Newtonian
droplet having similar viscosity, and with shear-thinning droplets. The study
aims to identify the role of liquid elasticity without the added complexity of
simultaneous shear-thinning behavior. It is observed that at the early stages
of droplet breakup, liquid elasticity plays an insignificant role, and all the
fluids show similar behavior. However, during the late stages, the impact of
liquid elasticity becomes dominant, which results in a markedly different
morphology of the fragmenting liquid mass compared to a Newtonian droplet.
