95 citations · 375 across the 7 of their papers we have counts for
7 papers · 1 filter
Cosmological bounds on the equation of state of dark matter
Christian M. Mueller
In this exploratory study, we investigate the bounds on the equation of state of dark matter. Modeling dark matter as a fluid component, we take into account both positive and nega…
Cosmological Markov Chain Monte Carlo simulation with Cmbeasy
Christian M. Mueller
We introduce a Markov Chain Monte Carlo simulation and data analysis package for the cosmological computation package Cmbeasy. We have taken special care in implementing an adaptiv…
Nucleosynthesis and the variation of fundamental couplings
Christian M. Mueller, Gregor Schaefer, Christof Wetterich
We determine the influence of a variation of the fundamental ``constants'' on the predicted helium abundance in Big Bang Nucleosynthesis. The analytic estimate is performed in two…
Analyze This! A Cosmological Constraint Package for CMBEASY
Michael Doran, Christian M. Mueller
We introduce a Markov Chain Monte Carlo simulation and data analysis package that extends the CMBEASY software. We have taken special care in implementing an adaptive step algorith…
Early Quintessence and the CMB
Christian M Mueller
We examine the cosmic microwave background (CMB) anisotropy for signatures of early quintessence dark energy -- a non-negligible quintessence energy density during the recombinatio…
Gauge-Invariant Initial Conditions and Early Time Perturbations in Quintessence Universes
Michael Doran, Christian M. Mueller, Gregor Schaefer +1
We present a systematic treatment of the initial conditions and evolution of cosmological perturbations in a universe containing photons, baryons, neutrinos, cold dark matter, and…