In the Letter ``Constraints on Cosmological Parameters from MAXIMA-1'' by A. Balbi et al. (ApJ 545, L1 ), an error was found in the results: while it is claimed in the Letter that the optical depth of reionization, τc, took values bewteen 0 and 0.5, an error in the computer code led to the results being based on τc=0. We have regenerated the database of models with the correct (published) values of τc, namely, τc=0, 0.025, 0.05, 0.075, 0.1, 0.15, 0.2, 0.3, and 0.5. The best-fit model quoted in the Letter remains unchanged. However, we have found that the 95% confidence level constraints on the total energy density of the universe, the physical density of baryons, and the scalar spectral index of primordial fluctuations change to Ω=1.0+0.25-0.30, Ωbh2=0.030+0.018- 0.010, and ns=1.08+0.32-0.08, respectively. The likelihoods for the remaining parameters are effectively unchanged. In Figures 1 and 2, we present the figures that should replace Figures 1 and 2 of the original Letter.
The Astrophysical Journal
- Pub Date:
- September 2001
- 4 pages, 4 figures. Reflects version published on ApJ Letters. Includes erratum (1 page, 2 figures) as published on ApJ Letters