Ray-tracing log-normal simulation for weak gravitational lensing: application to the cross-correlation with galaxies
نویسندگان
چکیده
We present an algorithm to self-consistently generate mock weak gravitational lensing convergence fields and galaxy distributions in redshift space. three-dimensional cosmic density that follow a log-normal distribution, ray-trace them produce maps. As we the distribution from same manner consistent with ray-tracing, galaxy-convergence cross-power spectrum measured agrees theoretical expectation high precision. use this simulation forecast quality of galaxy-shear cross-correlation measurements Subaru Hyper Suprime-Cam (HSC) Prime Focus Spectrograph (PFS) surveys. find nominal HSC PFS surveys would detect cross power spectra signal-to-noise ratios 20 5 at lowest ($z = 0.7$) highest 2.2$) bins, respectively.
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2021
ISSN: ['1475-7516', '1475-7508']
DOI: https://doi.org/10.1088/1475-7516/2021/03/095