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astro-ph.CO2010★ 12 cited
Information Content in the Angular Power Spectrum of Weak Lensing: Wavelet Method
Hao-Ran Yu, Joachim Harnois-Déraps, Tong-Jie Zhang +1
We quantify the performance of a non-linear Wiener filter, constructed in wavelet space, at recovering some of the Fisher information that was lost in the weak lensing convergence…
astro-ph.CO2010★ 23 cited
Increasing the Fisher Information Content in the Matter Power Spectrum by Non-linear Wavelet Weiner Filtering
Tong-Jie Zhang, Hao-Ran Yu, Joachim Harnois-Déraps +2
We develop a purely mathematical tool to recover some of the information lost in the non-linear collapse of large-scale structure. From a set of 141 simulations of dark matter dens…