Chan-Gyung Park

48 results

Citation Summary

Most Recent

Is excess smoothing of Planck CMB ansiotropy data partially responsible for evidence for dark energy dynamics in other

w(z)

CDM parametrizations?

(Jan 6, 2025)

e-Print:
- 2501.03480 [astro-ph.CO]

pdf

reference search14 citations

Is the

w_0w_a

CDM cosmological parameterization evidence for dark energy dynamics partially caused by the excess smoothing of Planck CMB anisotropy data?

(Oct 4, 2024)

e-Print:
- 2410.13627 [astro-ph.CO]

pdf

reference search32 citations

Using non-DESI data to confirm and strengthen the DESI 2024 spatially flat

w_{0} w_{a} CDM

cosmological parametrization result

Chan-Gyung Park
(
- Chonbuk Natl. U.
)
,
Javier de Cruz Pérez
(
- Madrid U.
)
,
Bharat Ratra
(
- Kansas State U., Manhattan
)

(May 1, 2024)

Published in:
- Phys.Rev.D 110 (2024) 12, 123533
•
e-Print:
- 2405.00502 [astro-ph.CO]

pdfDOI

reference search73 citations

Updated observational constraints on spatially flat and nonflat

Λ CDM

and XCDM cosmological models

Javier de Cruz Perez
(
- Madrid U.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U.
)
,
Bharat Ratra
(
- Kansas State U.
)

(Apr 29, 2024)

Published in:
- Phys.Rev.D 110 (2024) 2, 023506
•
e-Print:
- 2404.19194 [astro-ph.CO]

pdfDOI

reference search22 citations

Current data are consistent with flat spatial hypersurfaces in the

Λ CDM

cosmological model but favor more lensing than the model predicts

Javier de Cruz Perez
(
- Kansas State U.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U.
)
,
Bharat Ratra
(
- Kansas State U.
)

(Nov 8, 2022)

Published in:
- Phys.Rev.D 107 (2023) 6, 063522
•
e-Print:
- 2211.04268 [astro-ph.CO]

pdfDOI

reference search28 citations

CMASS galaxy sample and the ontological status of the cosmological principle

Yigon Kim
(
- Kyungpook Natl. U.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U.
)
,
Hyerim Noh
(
- KASI, DaeJeon
)
,
Jai-chan Hwang
(
- Kyungpook Natl. U. and
- IBS, Daejeon, CTPU
)

(Dec 8, 2021)

Published in:
- Astron.Astrophys. 660 (2022) A139,
- Astron.Astrophys. 660 (2022) A139
•
e-Print:
- 2112.04134 [astro-ph.CO]

pdfDOI

reference search13 citations

CMB distance priors revisited: effects of dark energy dynamics, spatial curvature, primordial power spectrum, and neutrino parameters

Zhongxu Zhai
(
- Caltech, IPAC
)
,
Chan-Gyung Park
(
- Jeonbuk Natl. U.
)
,
Yun Wang
(
- Caltech, IPAC
)
,
Bharat Ratra
(
- Kansas State U., Manhattan
)

(Dec 17, 2019)

Published in:
- JCAP 07 (2020) 009
•
e-Print:
- 1912.04921 [astro-ph.CO]

pdfDOI

reference search38 citations

The Spatially Closed Universe

Chan-Gyung Park

(Aug 30, 2019)

Published in:
- J.Korean Earth Sci.Soc. 40 (2019) 4, 353-381

DOI

reference search0 citations

Using SPT polarization,

Planck

2015, and non-CMB data to constrain tilted spatially-flat and untilted nonflat

\Lambda

CDM , XCDM, and

\phi

CDM dark energy inflation cosmologies

(Aug 22, 2019)

Published in:
- Phys.Rev.D 101 (2020) 8, 083508
•
e-Print:
- 1908.08477 [astro-ph.CO]

pdfDOI

reference search72 citations

First study of reionization in tilted flat and untilted non-flat dynamical dark energy inflation models

#10

Sourav Mitra
(
- Surendranath Coll.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U. and
- Kansas State U., Manhattan
)
,
Tirthankar Roy Choudhury
(
- NCRA, Ganeshkhind
)
,
Bharat Ratra
(
- Kansas State U.
)

(Jan 28, 2019)

Published in:
- Mon.Not.Roy.Astron.Soc. 487 (2019) 4, 5118-5128
•
e-Print:
- 1901.09927 [astro-ph.CO]

pdfDOI

reference search17 citations

Measuring the Hubble constant and spatial curvature from supernova apparent magnitude, baryon acoustic oscillation, and Hubble parameter data

#11

Chan-Gyung Park
(
- Chonbuk Natl. U. and
- Kansas State U.
)
,
Bharat Ratra
(
- Kansas State U.
)

(Sep 10, 2018)

Published in:
- Astrophys.Space Sci. 364 (2019) 8, 134
•
e-Print:
- 1809.03598 [astro-ph.CO]

pdfDOI

reference search89 citations

Perturbation initial conditions for a couple of dark energy scalar field potentials

#12

(Sep 5, 2018)

e-Print:
- 1809.01781 [gr-qc]

pdf

reference search0 citations

Cosmological hydrodynamics with relativistic pressure and velocity

#13

(Aug 31, 2018)

Published in:
- JCAP 11 (2018) 002
•
e-Print:
- 1809.01182 [gr-qc]

pdfDOI

reference search2 citations

Observational constraints on the tilted spatially-flat and the untilted nonflat

\phi

CDM dynamical dark energy inflation models

#14

(Jul 17, 2018)

Published in:
- Astrophys.J. 868 (2018) 2, 83
•
e-Print:
- 1807.07421 [astro-ph.CO]

pdfDOI

reference search93 citations

Observational constraints on the tilted flat-XCDM and the untilted nonflat XCDM dynamical dark energy inflation parameterizations

#15

(Mar 14, 2018)

Published in:
- Astrophys.Space Sci. 364 (2019) 5, 82
•
e-Print:
- 1803.05522 [astro-ph.CO]

pdfDOI

reference search90 citations

Using the tilted flat-

\Lambda

CDM and the untilted non-flat

\Lambda

CDM inflation models to measure cosmological parameters from a compilation of observational data

#16

Chan-Gyung Park
(
- Chonbuk Natl. U.
)
,
Bharat Ratra
(
- Kansas State U.
)

(Dec 30, 2017)

Published in:
- Astrophys.J. 882 (2019) 158
•
e-Print:
- 1801.00213 [astro-ph.CO]

pdfDOI

reference search122 citations

The Effect of Anisotropic Extra Dimension in Cosmology

#17

Seyen Kouwn
(
- KASI, DaeJeon and
- Seoultech and
- Sungkyunkwan U.
)
,
Phillial Oh
(
- Sungkyunkwan U.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U.
)

(Sep 22, 2017)

Published in:
- Phys.Dark Univ. 22 (2018) 27-37
•
e-Print:
- 1709.08499 [astro-ph.CO]

pdfDOI

reference search6 citations

Axion as a cold dark matter candidate: Proof to fully nonlinear order

#18

Hyerim Noh
(
- KASI, DaeJeon
)
,
Jai-chan Hwang
(
- Kyungpook Natl. U.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U.
)

(Jul 26, 2017)

Published in:
- Astrophys.J. 846 (2017) 1, 1
•
e-Print:
- 1707.08568 [gr-qc]

pdfDOI

reference search26 citations

The cosmological principle is not in the sky

#19

(Nov 7, 2016)

Published in:
- Mon.Not.Roy.Astron.Soc. 469 (2017) 2, 1924-1931
•
e-Print:
- 1611.02139 [astro-ph.CO]

pdfDOI

reference search25 citations

Massive Photon and Dark Energy

#20

(Dec 1, 2015)

Published in:
- Phys.Rev.D 93 (2016) 8, 083012
•
e-Print:
- 1512.00541 [astro-ph.CO]

pdfDOI

reference search38 citations

Fully non-linear cosmological perturbations of multicomponent fluid and field systems

#21

(Nov 3, 2015)

Published in:
- Mon.Not.Roy.Astron.Soc. 461 (2016) 3, 3239-3258
•
e-Print:
- 1511.01360 [gr-qc]

pdfDOI

reference search13 citations

Axion as a cold dark matter candidate: Analysis to third order perturbation for classical axion

#22

Hyerim Noh
(
- KASI, DaeJeon
)
,
Jai-chan Hwang
(
- Kyungpook Natl. U.
)
,
Chan-Gyung Park
(
- Chonbuk Natl. U.
)

(Sep 2, 2015)

Published in:
- JCAP 12 (2015) 016
•
e-Print:
- 1509.00937 [gr-qc]

pdfDOI

reference search7 citations

Improved cosmological model fitting of Planck data with a dark energy spike

#23

Chan-Gyung Park
(
- Chonbuk Natl. U.
)

(Mar 4, 2015)

Published in:
- Phys.Rev.D 91 (2015) 12, 123519
•
e-Print:
- 1503.01235 [astro-ph.CO]

pdfDOI

reference search3 citations

Newtonian hydrodynamics in the comoving gauge

#24

(Jul 29, 2014)

Published in:
- Phys.Rev.D 90 (2014) 2, 027503

DOI

reference search2 citations

Observational effects of the early episodically dominating dark energy

#25

Chan-Gyung Park
(
- Chonbuk Natl. U.
)
,
Jae-heon Lee
(
- Kyungpook Natl. U.
)
,
Jai-chan Hwang
(
- Kyungpook Natl. U.
)
,
Hyerim Noh
(
- KASI, DaeJeon
)

(Jul 6, 2014)

Published in:
- Phys.Rev.D 90 (2014) 8, 083526
•
e-Print:
- 1407.1512 [astro-ph.CO]

pdfDOI

reference search2 citations

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Chan-Gyung Park(
Jeonbuk Natl. U.
)

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Chan-Gyung Park(Jeonbuk Natl. U.)

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Chan-Gyung Park(
Jeonbuk Natl. U.
)