Lensing magnification biases the recovered turnover scale k0 by up to 3.6 sigma in high-z mocks, vanishing above z~3.7 for MegaMapper-like surveys and requiring modeling above z~2.9.
Cunnington,Detecting the power spectrum turnover with HI intensity mapping,Mon
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Impact of lensing magnification on the power spectrum turnover
Lensing magnification biases the recovered turnover scale k0 by up to 3.6 sigma in high-z mocks, vanishing above z~3.7 for MegaMapper-like surveys and requiring modeling above z~2.9.