C
Cheongho Han
Researcher at Chungbuk National University
Publications - 300
Citations - 5032
Cheongho Han is an academic researcher from Chungbuk National University. The author has contributed to research in topics: Gravitational microlensing & Planet. The author has an hindex of 32, co-authored 265 publications receiving 4440 citations. Previous affiliations of Cheongho Han include Korea Astronomy and Space Science Institute & Max Planck Society.
Papers
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Kmtnet: a network of 1.6 m wide-field optical telescopes installed at three southern observatories
Seung-Lee Kim,Chung-Uk Lee,Byeong-Gon Park,Dong-Jin Kim,Sang-Mok Cha,Yongseok Lee,Cheongho Han,Moo-Young Chun,In-Soo Yuk +8 more
TL;DR: The Korea Microlensing Telescope Network (KMTNet) as mentioned in this paper is a wide-field photometric system installed by the Korea Astronomy and Space Science Institute (KASI).
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Stellar Contribution to the Galactic Bulge Microlensing Optical Depth
Cheongho Han,Andrew Gould +1 more
TL;DR: In this paper, the authors estimate the optical depth to self-lensing by stars in the Galactic bulge using the Hubble Space Telescope star counts of Holtzman et al and Zoccali et al.
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The Mass Spectrum Of Machos From Parallax Measurements
Cheongho Han,Andrew Gould +1 more
TL;DR: In this paper, the authors demonstrate that by making satellite-based parallax measurements of Macho events, it is possible to distinguish disk from bulge Machos and to determine individual masses of disk Machos to an accuracy of $0.2$ in the log.
Journal ArticleDOI
The Mass Spectrum Of Machos From Parallax Measurements
Cheongho Han,Andrew Gould +1 more
TL;DR: In this paper, the authors demonstrate that by making satellite-based parallax measurements of Macho events, it is possible to distinguish disk from bulge Machos and to determine individual masses of disk Machos to an accuracy of $0.2$ in the log.
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Properties of Planetary Caustics in Gravitational Microlensing
TL;DR: In this paper, a comprehensive and analytic analysis of the properties of the planetary caustics, which are one of the two sets of Caustics in planetary microlensing, those located away from the central star, is presented.