The Four-Year COBE Normalization and Large-Scale Structure
Abstract
We present an analysis of the four-year data from the COBE DMR experiment. We use a Karhunen-Loeve expansion of the pixel data to calculate the normalization and goodness-of-fit of a range of models of structure formation. This technique produces unbiased normalization estimates and is capable of determining the normalization of any particular model with a statistical uncertainty of 7%. We present a parameterization of the normalization and likelihood function which summarizes our results for a wide range of models. We use the COBE normalization to compute small-scale fluctuation amplitudes for a variety of models and discuss the implications of these results for theories of large-scale structure.
Cite
@article{arxiv.astro-ph/9607060,
title = {The Four-Year COBE Normalization and Large-Scale Structure},
author = {Emory F. Bunn and Martin White},
journal= {arXiv preprint arXiv:astro-ph/9607060},
year = {2008}
}
Comments
LaTeX, 22 pages. Uses aaspp4.sty. 18 PostScript figures included. Final version, accepted to the Astrophysical Journal. Numerous small changse have been made, but all the main results are unchanged