The power spectrum of fluctuations in the cosmic microwave background (CMB) depends on most of the key cosmological parameters. Accurate future measurements of this power spectrum might therefore allow us to determine h, Omega, Omega_b, Lambda, n, T/S, etc, with hitherto unprecedented accuracy. In these lecture notes, which are intended to be readable without much prior CMB knowledge, I review the various physical processes that generate CMB fluctuations, focusing on how changes in the parameters alters the shape of the power spectrum. I also discuss foregrounds and real-world data analysis issues and how these affect the accuracy with which the parameters can be measured.
Dark Matter in the Universe
- Pub Date:
- 40 pages, including 12 figures. Postscript. Latest version available from http://astro.berkeley.edu/~max/power.html (faster from the US), from http://www.mpa-garching.mpg.de/~max/power.html (faster from Europe) or from email@example.com