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
Resilience of long modes in cosmological observables
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DOI: 10.1088/1475-7516/2021/01/062
Abstract: By a careful implementation of gauge transformations involving long-wavelength modes, we show that a variety of effects involving squeezed bispectrum configurations, for which one Fourier mode is much shorter than the other two, cannot be… read more here.
Keywords: long modes; modes cosmological; cosmology; resilience long ... See more keywords
Constraining power of cosmological observables: Blind redshift spots and optimal ranges
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.063537
Abstract: A cosmological observable measured in a range of redshifts can be used as a probe of a set of cosmological parameters. Given the cosmological observable and the cosmological parameter, there is an optimum range of… read more here.
Keywords: cosmological observables; parameter; redshift spots; constraining power ... See more keywords