The Accelerated Recombination, and the ACBAR and WMAP data

Abstract

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 \{$n_s$, $\log [10^{10}{A}_s]$, $H_0$\}.

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

References in corpus (2)

• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
• Cosmological constraints in the presence of ionizing and resonance radiation at recombination

Cited by in corpus (2)

• Updated CMB constraints on Dark Matter annihilation cross-sections
• Probing the last scattering surface through the recent and future CMB observations