Euclid preparation. XXIX. Forecasts for ten different higher-order weak lensing statistics
نویسندگان
چکیده
Recent cosmic shear studies have shown that higher-order statistics (HOS) developed by independent teams now outperform standard two-point estimators in terms of statistical precision thanks to their sensitivity the non-Gaussian features large-scale structure. The aim Higher-Order Weak Lensing Statistics (HOWLS) project is assess, compare, and combine constraining power ten different HOS on a common set Euclid -like mocks, derived from N -body simulations. In this first paper HOWLS series, we computed nontomographic (Ω m , σ 8 ) Fisher information for one-point probability distribution function, peak counts, Minkowski functionals, Betti numbers, persistent homology numbers heatmap, scattering transform coefficients, compare them convergence correlation functions absence any systematic bias. We also include forecasts three implementations moments, but these cannot be robustly interpreted as Gaussian likelihood assumption breaks down statistics. Taken individually, find each outperforms factor around two with some variations across cosmological parameters. When combining all HOS, increases 4.5 times improvement, highlighting immense potential analyses . data used analysis are publicly released paper.
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2023
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202346017