Halo asphericity and the shear three-point function

We demonstrate through the use of a simple toy model that asphericity in dark matter halos has a measurable effect on the configuration dependence of the weak-lensing shear three-point function at small scales. In principle, this sensitivity provides a way to measure the shapes of dark matter halos. The distribution of halo ellipticities should be included in models aiming at a high-fidelity prediction of n-point shear correlation statistics.