22 citations · 41 across the 5 of their papers we have counts for
5 papers
Skewness as a test of dark energy perturbations
Raquel Emy Fazolo, Luca Amendola, Hermano Velten
We investigate the role played by dark energy perturbations in the skewness of large-scale matter distribution. We consider a two-fluid universe composed by matter and dark e…
Skewness of matter distribution in clustering dark energy cosmologies
Hermano Velten, Raquel Emy Fazolo
We calculate the skewness (the third moment ) of matter distribution in dynamical dark energy cosmologies. We pay particular attention to the impact of dark energy perturbatio…
Degeneracy between nonadiabatic dark energy models and CDM: ISW effect and the cross correlation of CMB with galaxy clustering data
Hermano Velten, Raquel Emy Fazolo, Rodrigo von Marttens +1
As recently pointed out in Ref. [Phys.\ Rev.\ D {\bf 96}, 8, 083502 (2017)] the evolution of the linear matter perturbations in nonadiabatic dynamical dark energy models is almost…
Revealing the non-adiabatic nature of dark energy perturbations from galaxy clustering data
Hermano Velten, Raquel Fazolo
We study structure formation using relativistic cosmological linear perturbation theory in the presence of intrinsic and relative (with respect to matter) non-adiabatic dark energy…
Large scale structure and ISW effect in decaying vacuum cosmology
H. Velten, H. A. Borges, S. Carneiro +2
The concordance particle creation model - a class of CDM cosmologies - is studied using large scale structure (LSS) formation, with particular attention to the integrated Sac…