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Modified Gravity and Cosmology
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Euclid Definition Study Report
Euclid is a space-based survey mission from the European Space Agency designed to understand the origin of the Universe's accelerating expansion. It will use cosmological probes to investigate the…
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Cosmology and fundamental physics with the Euclid satellite
TLDR
This review is meant to provide a guide to the scientific themes that will underlie the activity of the group during the preparation of the Euclid mission and discusses five broad topics: dark energy and modified gravity, dark matter, initial conditions, basic assumptions and questions of methodology in the data analysis.
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Fast and reliable Markov chain Monte Carlo technique for cosmological parameter estimation
Markov chain Monte Carlo (MCMC) techniques are now widely used for cosmological parameter estimation. Chains are generated to sample the posterior probability distribution obtained following the…
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Cosmology and Fundamental Physics with the Euclid Satellite
TLDR
This review is meant to provide a guide to the scientific themes that will underlie the activity of the group during the preparation of the Euclid mission and discusses five broad topics: dark energy and modified gravity, dark matter, initial conditions, basic assumptions and questions of methodology in the data analysis.
View on Springer
Large scale structure in Bekenstein's theory of relativistic modified Newtonian dynamics.
TLDR
It is shown that it may be possible to reproduce observations of the cosmic microwave background and galaxy distributions with Bekenstein's theory of MOND, and the evolution of the scalar field is akin to that of tracker quintessence fields.
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Probing the Reionization History of the Universe using the Cosmic Microwave Background Polarization
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 of the universe.…
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Cosmological constraints on Brans-Dicke theory.
TLDR
Constraints on the Brans-Dicke (BD) theory of gravity using cosmic microwave background data from Planck have greater validity than for the BD theory and are valid for any Horndeski theory, the most general second-order scalar-tensor theory, which approximates theBD theory on cosmological scales.
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Fast and reliable MCMC for cosmological parameter estimation
Markov Chain Monte Carlo (MCMC) techniques are now widely us ed for cosmological parameter estimation. Chains are generated to sample the post rior probability distribution obtained following the…
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Solving the Vlasov equation in two spatial dimensions with the Schrödinger method
We demonstrate that the Vlasov equation describing collisionless self-gravitating matter may be solved with the so-called Schr\"odinger method (ScM). With the ScM, one solves the…
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