Investigating the degeneracy between modified gravity and massive neutrinos with redshift-space distortions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/06/040
Abstract: There is a well known degeneracy between the enhancement of the growth of large-scale structure produced by modified gravity models and the suppression due to the free-streaming of massive neutrinos at late times. This makes… read more here.
Keywords: massive neutrinos; degeneracy; redshift space; modified gravity ... See more keywords
A Zeldovich reconstruction method for measuring redshift space distortions using cosmic voids
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2799
Abstract: Redshift space distortions (RSD) in the void-galaxy correlation $\xi^s$ provide information on the linear growth rate of structure in low density environments. Accurate modelling of these RSD effects can also allow the use of voids… read more here.
Keywords: space; redshift space; space distortions; simulation ... See more keywords
Clustering and redshift-space distortions in modified gravity models with massive neutrinos
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz1850
Abstract: Modified gravity and massive neutrino cosmologies are two of the most interesting scenarios that have been recently explored to account for possible observational deviations from the concordance Λ cold dark matter (ΛCDM) model. In this… read more here.
Keywords: massive neutrinos; redshift space; modified gravity; space distortions ... See more keywords
Redshift-space distortions from vector perturbations. II. Anisotropic signal
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.103515
Abstract: We study the impact on the galaxy correlation function of the presence of a vector component in the tracers' peculiar velocities, in the case in which statistical isotropy is violated. We present a general framework… read more here.
Keywords: perturbations anisotropic; redshift space; anisotropic signal; vector perturbations ... See more keywords