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arXiv · astro-ph/0312253

Halo asphericity and the shear 3-pt function

Shirley Ho·Martin White
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Abstract

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 3-point function at small scales. This sensitivity provides a way, in principle, 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.

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Shirley Ho, Martin White. 2004-02-10. Halo asphericity and the shear 3-pt function. https://doi.org/10.1086/383262

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