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Optimal galaxy magnification: generalized fundamental-plane residuals and number counts are all you need

Xu, Kun et al.
arXiv (All) · Papers
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astrophysics-of-galaxiescosmology-and-nongalactic-astrophysics
Weak-lensing magnification complements cosmic shear through its effects on galaxy fluxes, sizes, and number counts. We derive the optimal magnification statistics from galaxy properties and show that the optimal measurement can be decomposed into an optimal mean statistic and total number counts. Th
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