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Nonlinear Sachs-Wolfe effect in the early universe

Title
Nonlinear Sachs-Wolfe effect in the early universe
Authors
한지영
Issue Date
2007
Department/Major
교육대학원 물리교육전공
Publisher
이화여자대학교 교육대학원
Degree
Master
Abstract
We investigate the influence of nonlinear metric perturbation to anisotropy of temperature in the early universe, considering the second order density perturbations in a spatially flat Friedmann-Robertson-Walker background. The Sachs-Wolfe effect, temperature anisotropy caused by photons traveling in the perturbed metic, is calculated by solving the geodesic equation of propagating light. In this thesis, we calculate the Sachs-Wolfe effect up to second order by choosing the longitudinal gauge. Also, we use the gradient expansion method in order to deal with the superhorizon mode.
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☞ 이 논문은 저자가 원문공개에 동의하지 않은 논문으로, 도서관 내에서만 열람이 가능하며, 인쇄 및 저장은 불가합니다.
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교육대학원 > 물리교육전공 > Theses_Master
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