Complete super-sample lensing covariance in the response approach
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2018/06/015
Abstract: We derive the complete super-sample covariance (SSC) of the matter and weak lensing convergence power spectra using the power spectrum response formalism to accurately describe the coupling of super-to-intra survey modes. The SSC term is… read more here.
Keywords: complete super; response; survey; lensing covariance ... See more keywords
Forecasting super-sample covariance in future weak lensing surveys with SuperSCRAM
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/10/004
Abstract: The observable universe contains density perturbations on scales larger than any finite volume survey. Perturbations on scales larger than a survey can measure degrade its power to constrain cosmological parameters. The dependence of survey observables… read more here.
Keywords: weak lensing; survey; sample covariance; super sample ... See more keywords
Super-sample tidal modes on the celestial sphere
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.103515
Abstract: The super-sample tidal effect carries information on long-wavelength fluctuations that we cannot measure directly. It arises from the mode-coupling between short-wavelength and long-wavelength perturbations beyond a finite region of a galaxy survey and violates statistical… read more here.
Keywords: sample tidal; sample tides; tidal modes; formalism ... See more keywords