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Constraints from the Lyman alpha forest power spectrum
Matias Zaldarriaga, Lam Hui, Max Tegmark
We use published measurements of the transmission power spectrum of the Lyman alpha forest to constrain several parameters that describe cosmology and thermal properties of the int…
Constraining non standard recombination: A worked example
Susana Landau, Diego Harari, Matias Zaldarriaga
We fit the BOOMERANG, MAXIMA and COBE/DMR measurements of the cosmic microwave background anisotropy in spatially flat cosmological models where departures from standard recombinat…
Latest cosmological constraints on the densities of hot and cold dark matter
Max Tegmark, Matias Zaldarriaga, Andrew J. S. Hamilton
As experimentalists step up their pursuit of cold dark matter particles and neutrino masses, cosmological constraints are tightening. We compute the joint constraints on 11 cosmolo…
Towards a refined cosmic concordance model: joint 11-parameter constraints from CMB and large-scale structure
Max Tegmark, Matias Zaldarriaga, Andrew J. S. Hamilton
We present a method for calculating large numbers of power spectra C_l and P(k) that accelerates CMBfast by a factor around 10^3 without appreciable loss of accuracy, then apply it…
Correlations in the Lyman alpha forest: testing the gravitational instability paradigm
Matias Zaldarriaga, Uros Seljak, Lam Hui
We investigate correlations between the long wavelength fluctuations and the small scale power in the Lyman alpha forest. We show that such correlations can be used to discriminate…
CMB Observables and Their Cosmological Implications
Wayne Hu, Masataka Fukugita, Matias Zaldarriaga +1
We show that recent measurements of the power spectrum of cosmic microwave background anisotropies by BOOMERanG and MAXIMA can be characterized by four observables, the position of…
New CMB constraints on the cosmic matter budget: trouble for nucleosynthesis?
Max Tegmark, Matias Zaldarriaga
We compute the joint constraints on ten cosmological parameters from the latest CMB measurements. The lack of a significant second acoustic peak in the latest Boomerang and Maxima…
Current cosmological constraints from a 10 parameter CMB analysis
Max Tegmark, Matias Zaldarriaga
We compute the constraints on a ``standard'' 10 parameter cold dark matter (CDM) model from the most recent CMB and data and other observations, exploring 30 million discrete model…