107 citations · 219 across the 8 of their papers we have counts for
7 papers
Is the CDM cosmological parameterization evidence for dark energy dynamics partially caused by the excess smoothing of Planck PR4 CMB anisotropy data?
Javier de Cruz Pérez, Chan-Gyung Park, Bharat Ratra
We study the performance of the flat CDM model and the dynamical dark energy parameterizations CDM and CDM, in which the dark energy (DE) equation of state is eithe…
Updated observational constraints on CDM dynamical dark energy cosmological models
Chan-Gyung Park, Bharat Ratra
We present updated observational constraints on the spatially flat CDM model, where dark energy is described by a minimally coupled scalar field with an inverse power-law po…
Is excess smoothing of Planck CMB ansiotropy data partially responsible for evidence for dark energy dynamics in other CDM parametrizations?
Chan-Gyung Park, Bharat Ratra
We study spatially-flat dynamical dark energy parametrizations, CDM, with redshift-dependent dark energy equation of state parameter expressed using three different qu…
Is the CDM cosmological parameterization evidence for dark energy dynamics partially caused by the excess smoothing of Planck CMB anisotropy data?
Chan-Gyung Park, Javier de Cruz Perez, Bharat Ratra
We study the performance of the spatially-flat dynamical dark energy (DE) CDM parameterization, with redshift-dependent DE fluid equation of state parameter $w(z) = w_0 + w…
Using non-DESI data to confirm and strengthen the DESI 2024 spatially-flat CDM cosmological parameterization result
Chan-Gyung Park, Javier de Cruz Perez, Bharat Ratra
We use a combination of Planck cosmic microwave background (CMB) anisotropy data and non-CMB data that include Pantheon+ type Ia supernovae (SNIa), Hubble parameter [], growt…
Updated observational constraints on spatially-flat and non-flat CDM and XCDM cosmological models
Javier de Cruz Perez, Chan-Gyung Park, Bharat Ratra
We study 6 LCDM models, with 4 allowing for non-flat geometry and 3 allowing for a non-unity lensing consistency parameter . We also study 6 XCDM models with a dynamical dark…