연구활동 Research activities
- 논문
- [국외]
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A Comparative Study between M30 and M92: M92 is a Merger Remnant with a Large Helium Enhancement,
Astrophysical Journal 961
(2024)
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Carbon Abundance of Globular Cluster M22 (NGC 6656) and the Surface Carbon Depletion Rates of the Milky Way Globular Clusters,
ASTROPHYSICAL JOURNAL LETTERS 950
(2023)
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M92 (NGC 6341) Is a Metal-complex Globular Cluster with an Atypical Primordial Population,
ASTROPHYSICAL JOURNAL LETTERS 948
(2023)
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Isochrone fitting of Galactic globular clusters - IV. NGC 6362 and NGC 6723,
Monthly Notices of the Royal Astronomical Society 518
(2023)
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Multiple Stellar Populations of Globular Clusters from Homogeneous Ca-CN-CH-NH Photometry. VII. Metal-poor Populations in 47 Tucanae (NGC 104),
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 263
(2022)
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Formation of Multiple Populations of M5 (NGC 5904),
Astrophysical Journal Letters 918
(2021)
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Multiple Stellar Populations of Globular Clusters from Homogeneous Ca–CN–CH–NH Photometry. VI. M3 (NGC 5272) Is Not a Prototypical Normal Globular Cluster,
Astrophysical Journal 909
(2021)
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Five Stellar Populations in M22 (NGC 6656),
ASTROPHYSICAL JOURNAL LETTERS 888
(2020)
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Multiple Stellar Populations of Globular Clusters from Homogeneous Ca-CN-CH Photometry. V. cn '(JWL) as a Surrogate cn(JWL) Index and NGC 6723,
Astrophysical Journal 883
(2019)
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Structure of Our Galactic Bulge from CN Measurements,
ASTROPHYSICAL JOURNAL LETTERS 875
(2019)
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Multiple Stellar Populations of Globular Clusters from Homogeneous Ca-CN Photometry. IV. Toward Precision Populational Tagging,
ASTROPHYSICAL JOURNAL 872
(2019)
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Multiple Stellar Populations of Globular Clusters from Homogeneous Ca-CN Photometry. III. NGC 6752,
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 238
(2018)
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Medium-resolution Spectroscopy of Red Giant Branch Stars in omega Centauri,
ASTRONOMICAL JOURNAL 154
(2017)
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Multiple Stellar Populations of Globular Clusters from Homogeneous Ca-CN Photometry. II. M5 (NGC 5904) and a New Filter System,
ASTROPHYSICAL JOURNAL 844
(2017)
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ON THE METALLICITY DISTRIBUTION OF THE PECULIAR GLOBULAR CLUSTER M22,
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 226
(2016)
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THE DISTANCES TO OPEN CLUSTERS FROM MAIN-SEQUENCE FITTING. V. EXTENSION OF COLOR CALIBRATION AND TEST USING COOL AND METAL-RICH STARS IN NGC 6791,
Astrophysical Journal 811
(2015)
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Multiple stellar populations of globular clusters from homogeneous Ca by photometry. I. M22 (NGC 6656),
Astrophysical Journal Supplement Series 219
(2015)
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THE CHEMICAL COMPOSITION OF rho PUPPIS AND THE SIGNS OF ACCRETION IN THE ATMOSPHERES OF B-F-TYPE STARS,
ASTRONOMICAL JOURNAL 149
(2015)
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LOW-RESOLUTION SPECTROSCOPY FOR THE GLOBULAR CLUSTERS WITH SIGNS OF SUPERNOVA ENRICHMENT: M22, NGC 1851, AND NGC 288,
Astrophysical Journal Supplement Series 216
(2015)
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TOWARD A BETTER UNDERSTANDING OF THE DISTANCE SCALE FROM RR LYRAE VARIABLE STARS:A CASE STUDY FOR THE INNER HALO GLOBULAR CLUSTER NGC 6723,
Astrophysical Journal Supplement Series 210
(2014)
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A COMPARISON BETWEEN THE STELLAR AND DYNAMICAL MASSES OF SIX GLOBULAR CLUSTERS,
The Astrophysical Journal 755-2
(2012)
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STELLAR VARIABILITY OF THE EXOPLANET HOSTING STAR HD 63454,
The Astrophysical Journal 737-2
(2011)
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Two Distinct Red Giant Branches in the Globular Cluster NGC 288,
The Astrophysical Journal Letters 733-2
(2011)
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Variations in the Na-O anticorrelation in globular clusters: evidence for a deep mixing episode in red giant branch stars,
Monthly Notices of the Royal Astronomical Society 405-1
(2010)
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The Presence of Two Distinct Red Giant Branches in the Globular Cluster NGC 1851,
The Astrophysical Journal Letters 707
(2009)
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Enrichment by supernovae in globular clusters with multiple populations,
Nature 462
(2009)
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Chemical Inhomogeneity in Red Giant Branch Stars and RR lyrae variables in NGC 1851: Two Subpopulations in Red Giant Branch,
The Astrophysical Journal Letters 695
(2009)
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A Chemical Abundance Study of three RHB and two RGB stars in NGC 6637 (M69),
Revista Mexicana de Astronomia y Astrofisica 28
(2007)
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VI Photometry of Globular Clusters NGC 6293 and NGC 6541 : The Formation of the Metal-Poor Inner Halo Globular Clusters,
The Astronomical Journal 132
(2006)
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A Chemical Abundance Study of One Red Giant Star in NGC 5694: A Globular Cluster with a Dwarf Spheroidal Chemical Signature?,
Astrophysical Journal 646
(2006)
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Infrared Photometry of NGC 6791,
Astronomical Journal 129
(2005)
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The Look-Back Time Evolution of Far-UV Flux from Elliptical Galaxies : The Fornax Cluster and Abell 2670,
Astrophysical Journal Letters 619
(2005)
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Chemical Abundances for Seven Giant Stars in M68 (NGC4590),
Astronomical Journal 129
(2005)
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GALEX Ultarviolet Photometry of Globular Clusters in M31,
Astrophysical Journal Letters 619
(2005)
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GALEX UV Color-Magnitude Relations and Evidence for Recent Star Formation in Early-Type Galaxies,
Astrophysical Journal Letters 619
(2005)
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High-Resolution Spectroscopy of 15 Metal-Poor Stars,
Key Engineering Materials 277-279
(2005)
- [국내]
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LONG-TERM VARIATION OF THE SHUTTER DELAY TIME OF Y4KCAM OF THE CTIO 1.0 M TELESCOPE,
Journal Of The Korean Astronomical Society 49
(2016)
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The Evolutionary Statues of Solar Type Detached Eclipsing Binary Stars,
Journal of Astronomy and Space Science 29(2)
(2012)
- 학술발표
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Exploring Multiple Populations in Globular Clusters using an Innovative Near-Infrared Photometry with BOAO/KASINICS,
한국천문학회 2023 가을 학술대회(한국천문학회),
2023-10
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Near-Infrared Approach to Multiple Populations of Globular Clusters using BOAO/KASINICS,
한국천문학회 2023 봄 학술대회(한국천문학회),
2023-04
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Messier 3: An Extra-Galactic System with Two Globular Clusters,
한국 천문학회 2021년도 봄 학술대회(한국 천문학회),
2021-04
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Ca-CN-CH Photometry: New Photometric System for Multiple Stellar Populations in Globular Clusters,
The 21st Century H-R Diagram: The Power of Precision Photometry(Space Telescope Science Institute (미국NASA 우주망원경연구소),
2018-04
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A Chemical Abundance Study of 47 Tuc based on HYDRA spectroscopy,
한국천문학회2017년 가을 학술대회(한국천문학회),
2017-10
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Ca-CN Photometry of M5: A New Saga Begins,
한국천문학회2017년 가을 학술대회(한국천문학회),
2017-10
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High resolution spectroscopic study of the peculiar globular cluster M22 (NGC 6656),
한국천문학회2017년 가을 학술대회(한국천문학회),
2017-10
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Medium resoultion spectroscopy of red giant stars in Omega Centauri,
한국천문학회 2016가을학술대회(한국천문학회),
2016-10
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New photometric system for CN and CH,
한국천문학회 2016가을학술대회(한국천문학회),
2016-10
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The curious case of M22,
European Week of Astronomy and Space Science(European Astronomical Society),
2016-07
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Sejong Ca-CN Survey of Southern Globular Clusters,
Multiple populations in globular clusters:"Where do we stand?"(European Research Council),
2016-07
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On the equivalenet measurements of high-resolution spectra,
한국천문학회 2016봄학술대회(한국천문학회),
2016-04
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It is surface gravity,
한국천문학회 2016봄 학술대회(한국천문학회),
2016-04
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Extention of Empirical Color Calibration and Test using Cool and Metal-Rich Stars in NGC 6791,
IAU General Assembly(American Astronomical Society, 한국천문학회),
2015-08
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On the long-term stability of the Y4KCam shutter,
2015년도 한국 천문학회 봄 학술대회(한국천문학회),
2015-04
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Distance and Reddening of NGC 6791 using Empirically Calibrated Isochrones,
2015 한국천문학회 봄 학술대회(한국천문학회),
2015-04
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A Progress Report on the Sejong Ca-CN Survey,
10th Pacific Rim Conference on Stellar Astrophysics(Sejong University),
2013-05
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Multiple Stellar Populations of Globular Clusters through Ca by photometry,
IAU 2012 General Assembly Special Session 1 Origin and Complexity of Massive Star Clusters,
2012-08
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Multiple Stellar Populations of Globular Clusters,
11th Asian-Pacific Regional IAU Meeting (APRIM2011)(APRIM2011),
2011-07
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구상성단의 다중항성종족,
한국우주과학회 2010년 가을학술대회,
2010-10
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Multiple Populations of GCs Seen from Ca uvby Photometry,
GMT 2010: Opening new frontiers with the Giant Magellan Telescope(한국천문연구원)(한국천문연구원),
2010-10
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Multiple populations of GCs seen from Ca uvby photometry,
Multiple populations in globular clusters,
2010-09
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항성종족론 연구의 신중흥기,
2010년도 한국천문학회 봄 학술대회,
2010-04
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Variations in the Na-O anticorrelation in globular clusters,
한국우주과학회 2010년 봄 학술대회,
2010-04
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Exploring Multiple Populations in Globular Clusters using Ca uvby photometry: Case Studies for NGC 6218 and NGC 6752,
한국우주과학회,
2009-10
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Sejong Ca uvby Survey hits the Jackpot: New Perspective on the Multiple Populations in Globular Clusters and Galaxy Formations,
한국천문학회,
2009-10
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Ca uvby photometry of the Galactic globular clusters NGC 6121 (M4) and NGC 5904 (M5),
한국천문학회,
2009-10
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The Presence of Two Distinct Red Giant Branches in the Globular Cluster NGC 1851,
한국천문학회,
2009-10
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Supernovae enrichment in the globular clusters with multiple populations,
제 42회 한림심포지움,
2009-09
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중금속함량이 낮은 거성의 중성자 포획 원소 함량,
한국천문학회 2008 가을학술대회,
2008-10
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Chemical inhomogeneity in red giant branch stars and RR Lyrae variables in NGC1851,
한국천문학회 2008 가을 학술대회,
2008-10
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Neutron capture elements in metal-poor giants,
한국우주과학회 2008 가을학술대회,
2008-10
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Extremely metal-poor stars in the Galactic bulge,
한국천문학회 2008 봄 학술대회,
2008-04
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A Chemical Abundance Study of three RHB and two RGB stars in NGC 6637 (M69),
Astronomical Society of the Pacific Conference Series,
2007-04
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Chemical Abundance Study of NGC 5694: A Globular Cluster with a Dwarf Spheroidal Chemical Signature?,
한국우주과학회,
2006-04
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Chemical Abundances of Metal-Rich Globular Clusters NGC6637,
7th Pacific Rim Conference on Stellar Astrophysics,
2005-11
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High Resolution Spectroscopy of RHB and RGB Stars in NGC6637,
한국천문학회,
2005-10
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우리은하의 형성과 진화,
대형망원경 워크샾(한국천문학회)(한국천문학회),
2005-06
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[Si/Ti] elemental ratios in 9 old halo globular clusters,
IAU Symposium 228,
2005-05
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GALEX Look-back Time Evolution of Far-UV from Quiescent Elliptical Galaxies,
한국천문학회,
2005-05
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Alpha-element Abundances in 9 Old Halo Globular Clusters,
한국천문학회,
2005-04
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Super-Helium-Rich Populations in Globular Clusters,
한국천문학회,
2005-04
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Look-back Time Evolution of Far-UV Flux from Quiescent Elliptical Galaxies,
한국우주과학회,
2005-04
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GALEX Observations of Nearby Early Type Galaxies,
한국천문학회,
2005-04
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GALEX nearby Galaxy Survey,
한국천문학회,
2005-04
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Chemical Abundances for Seven Giant Stars in M68 (NGC4590),
205th Meeting of the American Astronomical Society,
2005-01