Isotropic vs. anisotropic components of BAO data: a tool for model selection
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2018/05/033
Abstract: We conduct a selective analysis of the isotropic ($D_V$) and anisotropic ($AP$) components of the most recent Baryon Acoustic Oscillations (BAO) data. We find that these components provide significantly different constraints and could provide strong… read more here.
Keywords: anisotropic components; model; model selection; bao data ... See more keywords
K-mouflage imprints on cosmological observables and data constraints
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/05/027
Abstract: We investigate cosmological constraints on K-mouflage models of modified gravity. We consider two scenarios: one where the background evolution is free to deviate from $\Lambda$CDM (K-mouflage) and another one which reproduces a $\Lambda$CDM expansion (K-mimic),… read more here.
Keywords: imprints cosmological; constraints mouflage; mouflage imprints; mouflage ... See more keywords
Relation between the turnaround radius and virial mass in f(R) model
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/07/026
Abstract: We investigate the relationship between the turnaround radius ($R_t$) and the virial mass ($M_v$) of cosmic structures in the context of $\Lambda$CDM model and in an $f(R)$ model of modified gravity -- namely, the Hu-Sawicki… read more here.
Keywords: mass; model; virial mass; lambda cdm ... See more keywords
Cosmologically viable generalized Einstein-aether theories
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DOI: 10.1103/physrevd.99.043515
Abstract: We investigate generalized Einstein-Aether theories that are compatible with the Planck Cosmic Microwave Background (CMB) temperature anisotropy, polarisation, and lensing data. For a given dark energy equation of state, $w_{\rm de}$, we formulate a designer… read more here.
Keywords: einstein aether; lambda cdm; generalized einstein; cmb temperature ... See more keywords