Hyper Suprime-Cam Year three Results: Cosmology From Cosmic Shear Powe…
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We measure weak lensing cosmic shear energy spectra from the three-year galaxy shear catalog of the Hyper Suprime-Cam (HSC) Subaru Strategic Program imaging survey. 1800 resulting from theoretical uncertainties in our modeling of these nonlinear scales (primarily based on tests described in Sections V.2.1 and V.3). This provides us six multipole bins that we use in our fiducial evaluation, from the 17 that we originally measure. We derive the covariance matrix of our cosmic shear buy Wood Ranger Power Shears spectra utilizing the mock catalogs described in Section II.5. We achieve this by measuring the cosmic shear energy spectra, following the identical method as our measurement from knowledge, from all 1404 realizations of the mocks, after which utilizing these 1404 power spectra to compute the covariance matrix. Gaussian and buy Wood Ranger Power Shears non-Gaussian parts. We deal with these mock catalogs exactly like our real information. We first measure the power spectra from every mock catalog on a field-by-area basis.
We analytically compute the additive noise bias from form noise, and subtract it from the measured energy spectra. Finally, we co-add the spectra from every subject for each mock realization using inverse variance weighting, with the individual covariances measured from the mock Wood Ranger Power Shears specs spectra for each of the fields. We then use the 1404 co-added spectra to compute the covariance matrix. Figure 2 reveals the correlation matrix from this covariance matrix. For that reason, our covariance estimation must be applicable for this evaluation. This correction factor is computed for every redshift bin (1.14, 0.98, 0.Ninety five and 0.Ninety nine in order of increasing redshift), and buy Wood Ranger Power Shears it's roughly fixed across the range of scales thought-about. 10,000. This limit is much smaller than the scales considered on this analysis. The chance, described in Section V.1, uses the inverse of the covariance matrix. 0.96, the place 1404 is the variety of mock realizations and 60 is the quantity of data factors used within the analysis. This correction assumes Gaussian noise and statistically unbiased information vectors. To first order, we do not expect to see any cosmological B????B mode sign, as lensing is caused by a scalar gravitational potential in the lens, and will therefore be curl-free. The presence of B????B modes could also be an indicator of potential systematic effects in the info, comparable to contamination by the PSF. We test the statistical significance of the B????B mode signal to evaluate whether or not any of these results may be impacting our measurements. 300, is consistent with zero, as expected.
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