Doppler peaks and all that: CMB anisotropies and what they can tell us

Details Doppler peaks and all that: CMB anisotropies and what they can tell us Doppler peaks and all that: CMB anisotropies and what they can tell us

1995-11-30

arxiv.org/abs/astro-ph/9511148v1

Proc. Enrico Fermi, Course CXXXII, Varenna, 1995

Astronomy and Astrophysics

Astrophysics

40 pages, including 12 figures. Postscript. Latest version available from http://astro.berkeley.edu/~max/power.html (faster fr

Scientific paper

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.

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