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Joint reconstructions of growth and expansion histories from stage-IV surveys with minimal assumptions. II. Modified gravity and massive neutrinos
Rodrigo Calderón, Benjamin L'Huillier, David Polarski +2
Based on a formalism introduced in our previous work, we reconstruct the phenomenological function describing deviations from General Relativity (GR) in a model-in…
Joint reconstructions of growth and expansion histories from stage-IV surveys with minimal assumptions I: Dark Energy beyond
R. Calderón, B. L'Huillier, D. Polarski +2
Combining Supernovae, Baryon Acoustic Oscillations and Redshift-Space Distortions data from the next generation of (Stage-IV) cosmological surveys, we aim to reconstruct the expans…
Global properties of the growth index: mathematical aspects and physical relevance
R. Calderon, D. Felbacq, R. Gannouji +2
We analyze the global behaviour of the growth index of cosmic inhomogeneities in an isotropic homogeneous universe filled by cold non-relativistic matter and dark energy (DE) with…
Global properties of the growth index of matter inhomogeneities in the universe
R. Calderon, D. Felbacq, R. Gannouji +2
We perform here a global analysis of the growth index behaviour from deep in the matter era till the far future. For a given cosmological model in GR or in modified gravity, th…
Defying the laws of Gravity I: model-independent reconstruction of the Universe expansion from growth data
Benjamin L'Huillier, Arman Shafieloo, David Polarski +1
Using redshift space distortion data, we perform model-independent reconstructions of the growth history of matter inhomogeneity in the expanding Universe using two methods: crossi…
The End of Cosmic Growth
Eric V. Linder, David Polarski
The growth of large scale structure is a battle between gravitational attraction and cosmic acceleration. We investigate the future behavior of cosmic growth under both general rel…