Reduced Shear Power Spectrum

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dc.creatorDodelson, Scott
dc.creatorShapiro, Charles
dc.creatorWhite, Martin
dc.date2005-08-12
dc.date.accessioned2026-07-07T11:57:14Z
dc.date.available2026-07-07T11:57:14Z
dc.descriptionMeasurements of ellipticities of background galaxies are sensitive to the reduced shear, the cosmic shear divided by $(1-κ)$ where $κ$ is the projected density field. We compute the difference between shear and reduced shear both analytically and with simulations. The difference becomes more important on smaller scales, and will impact cosmological parameter estimation from upcoming experiments. A simple recipe is presented to carry out the required correction.
dc.description8 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0508296
dc.identifierhttp://arxiv.org/abs/astro-ph/0508296
dc.identifierPhys.Rev.D73:023009,2006
dc.identifierdoi:10.1103/PhysRevD.73.023009
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/205812
dc.subjectAstrophysics
dc.titleReduced Shear Power Spectrum
dc.typetext

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