Dark energy and CMB anisotropy
Name
56730555-MIT.pdf
Description
Full printable version
Size
2.02 MB
Format
Adobe PDF
Checksum (MD5)
a0e1a6c862604617546d3035db04e66a
Author(s)
Lam, Yukyam, 1982-
Advisor(s)
Edmund Bertschinger.
Alternative Title
Dark energy and Cosmic Microwave Background anisotropy
Date Issued
2004
Publisher
Massachusetts Institute of Technology
Abstract
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.
Description
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2004.
Includes bibliographical references (p. 59-60).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
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