| Issue |
A&A
Volume 393, Number 2, October II 2002
|
|
|---|---|---|
| Page(s) | 381 - 387 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361:20021041 | |
| Published online | 23 September 2002 | |
Cosmic Microwave Background anisotropies beyond the third peak
1
IAS-CNRS, Université Paris Sud, Bât. 121, 91405 Orsay Cedex, France
2
IAP-CNRS, 98 bis Boulevard Arago, 75014 Paris, France
3
Denys Wilkinson Building, University of Oxford, Keble Road, Oxford, OX 3RH, UK
Corresponding author: N. Aghanim, Nabila.Aghanim@ias.u-psud.fr
Received:
11
March
2002
Accepted:
11
July
2002
Forthcoming Cosmic Microwave Background (CMB) experiments will
allow us to accurately investigate
the power spectrum at very small scales (
).
We predict the level of the primary anisotropies,
given the actual CMB measurements. The secondary anisotropies
generated after matter-radiation decoupling contribute
additional power in the tail of the CMB power spectrum.
Together with the primary anisotropies, we compute the
predicted power spectra for three dominant secondary effects induced
by photon scattering. We predict these secondary contributions in flat
cosmological models for parameters
in agreement (to 
) with the values allowed by current
parameter estimates.
Key words: cosmology: cosmic microwave background
© ESO, 2002
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