Dark energy and CMB anisotropy
Author(s)Lam, Yukyam, 1982-
Dark energy and Cosmic Microwave Background anisotropy
Massachusetts Institute of Technology. Dept. of Physics.
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According to the WMAP and earlier COBE observations, the Cosmic Microwave Background (CMB) anisotropy power on large angular scales appears to be significantly lower than predicted by the standard model of cosmology. We propose a scalar field model of the dark energy as a mechanism for suppressing low l multipoles through late-Universe evolution of metric fluctuations and the integrated Sachs-Wolfe (ISW) effect. We find that for a constant dark energy equation of state, theoretical predictions actually give a larger (instead of a desired smaller) value of the quadrupole and other low l multipoles.
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.Includes bibliographical references (p. 59-60).
DepartmentMassachusetts Institute of Technology. Dept. of Physics.
Massachusetts Institute of Technology