180 citations · 1.2k across the 36 of their papers we have counts for
38 papers
Current data are consistent with flat spatial hypersurfaces in the CDM cosmological model but favor more lensing than the model predicts
Javier de Cruz Perez, Chan-Gyung Park, Bharat Ratra
We study the performance of three pairs of tilted CDM cosmological models, two pairs allowing for non-flat spatial hypersurfaces with CMB temperature and polarization power spec…
CMASS galaxy sample and the ontological status of the cosmological principle
Yigon Kim, Chan-Gyung Park, Hyerim Noh +1
The cosmological principle (CP), assuming spatially homogeneous and isotropic background geometry in the cosmological scale, is a fundamental assumption in modern cosmology. Recent…
CMB distance priors revisited: effects of dark energy dynamics, spatial curvature, primordial power spectrum, and neutrino parameters
Zhongxu Zhai, Chan-Gyung Park, Yun Wang +1
As a physical and sufficient compression of the full CMB data, the CMB distance priors, or shift parameters, have been widely used and provide a convenient way to include CMB data…
Using SPTpol, Planck 2015, and non-CMB data to constrain tilted spatially-flat and untilted non-flat CDM, XCDM, and CDM dark energy inflation cosmologies
Chan-Gyung Park, Bharat Ratra
We use six tilted spatially-flat and untilted non-flat dark energy cosmological models in analyses of South Pole Telescope polarization (SPTpol) cosmic microwave background (CMB) d…
First study of reionization in tilted flat and untilted non-flat dynamical dark energy inflation models
Sourav Mitra, Chan-Gyung Park, Tirthankar Roy Choudhury +1
We examine the effects of dark energy dynamics and spatial curvature on cosmic reionization by studying reionization in tilted spatially-flat and untilted non-flat XCDM and CDM…
Cosmological hydrodynamics with relativistic pressure and velocity
Hyerim Noh, Jai-chan Hwang, Chan-Gyung Park
We present hydrodynamic equations with relativistic pressure and velocity in the presence of weak gravity, in a cosmological context. Previously we consistently derived special rel…