Hyper Suprime-Cam Year 3 Results: Cosmology From Cosmic Shear Power Sp…
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We measure weak lensing cosmic shear energy spectra from the three-yr galaxy shear catalog of the Hyper Suprime-Cam (HSC) Subaru Strategic Program imaging survey. 1800 resulting from theoretical uncertainties in our modeling of those nonlinear scales (based on assessments described in Sections V.2.1 and V.3). This offers us six multipole bins that we use in our fiducial analysis, from the 17 that we initially measure. We derive the covariance matrix of our cosmic shear energy spectra using the mock catalogs described in Section II.5. We accomplish that by measuring the cosmic shear energy spectra, following the same technique as our measurement from information, from all 1404 realizations of the mocks, and then using these 1404 power spectra to compute the covariance matrix. Gaussian and non-Gaussian elements. We deal with these mock catalogs exactly like our actual information. We first measure the ability spectra from every mock catalog on a subject-by-subject foundation.
We analytically compute the additive noise bias from form noise, and subtract it from the measured power spectra. Finally, we co-add the spectra from each field for every mock realization utilizing inverse variance weighting, with the person covariances measured from the mock power spectra for each of the fields. We then use the 1404 co-added spectra to compute the covariance matrix. Figure 2 shows the correlation matrix from this covariance matrix. For this reason, our covariance estimation must be acceptable for this evaluation. This correction factor is computed for every redshift bin (1.14, 0.98, 0.Ninety five and 0.Ninety nine so as of accelerating redshift), and it is approximately fixed across the range of scales thought of. 10,000. This limit is far smaller than the scales thought of in this evaluation. The likelihood, described in Section V.1, makes use of the inverse of the covariance matrix. 0.96, where 1404 is the number of mock realizations and 60 is the quantity of data factors used in the analysis. This correction assumes Gaussian noise and statistically unbiased data vectors. To first order, we do not count on to see any cosmological B????B mode signal, as lensing is caused by a scalar gravitational potential in the lens, and should therefore be curl-free. The presence of B????B modes may be an indicator of potential systematic results in the data, comparable to contamination by the PSF. We check the statistical significance of the B????B mode signal to evaluate whether or not any of those effects may be impacting our measurements. 300, Wood Ranger Power Shears specs is according to zero, as anticipated.
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