Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 한지영 | - |
dc.creator | 한지영 | - |
dc.date.accessioned | 2016-08-25T02:08:03Z | - |
dc.date.available | 2016-08-25T02:08:03Z | - |
dc.date.issued | 2007 | - |
dc.identifier.other | OAK-000000020566 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/173245 | - |
dc.identifier.uri | http://dcollection.ewha.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000020566 | - |
dc.description | ☞ 이 논문은 저자가 원문공개에 동의하지 않은 논문으로, 도서관 내에서만 열람이 가능하며, 인쇄 및 저장은 불가합니다. | - |
dc.description.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. | - |
dc.description.tableofcontents | 1 Introduction 3 2 The standard cosmological model 5 2.1 Introduction to Big Bang theory 5 2.2 FRW universe 6 2.3 The thermal history of universe 10 2.4 CMB anisotropy 11 3 Cosmological density perturbation 14 3.1 Gauge 14 3.2 Perturbed flat FRW universe 15 3.2.1 The metric tensor and matter components 15 3.2.1 Perturbed Einstein equations 17 4 The Sachs-Wolfe effect 19 4.1 Geodesic equation and temperature anisotropy 19 4.2 The Sachs-Wolfe effect 22 4.2.1 Linear theory 22 4.2.2 Second order perturbation 23 5 Discussion 25 A Perturbing gravity at second order 27 | - |
dc.format | application/pdf | - |
dc.format.extent | 581035 bytes | - |
dc.language | eng | - |
dc.publisher | 이화여자대학교 교육대학원 | - |
dc.title | Nonlinear Sachs-Wolfe effect in the early universe | - |
dc.type | Master's Thesis | - |
dc.creator.othername | Han, Ji-young | - |
dc.format.page | 39 p. | - |
dc.identifier.thesisdegree | Master | - |
dc.identifier.major | 교육대학원 물리교육전공 | - |
dc.date.awarded | 2007. 2 | - |