151 citations · 283 across the 5 of their papers we have counts for
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Reduction of Cosmological Data for the Detection of Time-varying Dark Energy Density
Jason Dick, Lloyd Knox, Mike Chu
We present a method for reducing cosmological data to constraints on the amplitudes of modes of the dark energy density as a function of redshift. The modes are chosen so that (1)…
Cosmological Parameter Constraints as Derived from the Wilkinson Microwave Anisotropy Probe Data via Gibbs Sampling and the Blackwell-Rao Estimator
M. Chu, H. K. Eriksen, L. Knox +5
We study the Blackwell-Rao (BR) estimator of the probability distribution of the angular power spectrum, P(C_l|d), by applying it to samples of full-sky no-noise CMB maps generated…
Testing cosmological models and understanding cosmological parameter determinations with metaparameters
Mike Chu, Lloyd Knox
Cosmological parameters affect observables in physically distinct ways. For example, the baryon density, omega_b, affects the ionization history and also the pressure of the pre-re…
Normal Parameters for an Analytic Description of the CMB Cosmological Parameter Likelihood
Mike Chu, Manoj Kaplinghat, Lloyd Knox
The normal parameters are a non--linear transformation of the cosmological parameters whose likelihood function is very well--approximated by a normal distribution. This transforma…
Probing the Reionization History of the Universe using the Cosmic Microwave Background Polarization
M. Kaplinghat, M. Chu, Z. Haiman +3
The recent discovery of a Gunn--Peterson (GP) trough in the spectrum of the redshift 6.28 SDSS quasar has raised the tantalizing possibility that we have detected the reionization…