The Accelerated Recombination, and the ACBAR and WMAP data

Details The Accelerated Recombination, and the ACBAR and WMAP data The Accelerated Recombination, and the ACBAR and WMAP data

2008-02-27

arxiv.org/abs/0802.4005v5

ApJL 678, L1 2008

Astronomy and Astrophysics

Astrophysics

v2: matched with the accepted version (minor change) v3: typo corrections v4: a duplicated pdf file fixed

Scientific paper

10.1086/588427

We have investigated the deviation from the standard recombination process, using the ACBAR 2008 and the WMAP 3 year data. In this investigation, we have considered the possibility of the accelerated recombination as well as the delayed recombination. We find that the accelerated recombination is as likely as the delayed recombination, and there is some degeneracy between $\epsilon_{\alpha}$ and \{$n_s$, $\log[10^{10}A_s]$, $H_0$\}.

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