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H. Yama · SciRah

Researcher profile · Semantic Scholar

H. Yama

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H. Yama — researcher profile on SciRah

h-index: 9
Works: 76
Citations: 487

Most-cited papers

An Isolated Mass-gap Black Hole or Neutron Star Detected with Astrometric Microlensing
Casey Y. Lam, Jessica R. Lu, A. Udalski, I. Bond +41 more
2022102 citations Open access
Semantic Scholar
Free-floating Planet Mass Function from MOA-II 9 yr Survey toward the Galactic Bulge
T. Sumi, N. Koshimoto, D. Bennett, N. Rattenbury +24 more
2023Astronomical Journal66 citations Open access
Semantic Scholar
Terrestrial- and Neptune-mass Free-Floating Planet Candidates from the MOA-II 9 yr Galactic Bulge Survey
N. Koshimoto, T. Sumi, D. Bennett, V. Bozza +27 more
2023Astronomical Journal37 citations Open access
Semantic Scholar
Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits.
W. Zang, Y. Jung, J. Yee, K. Hwang +64 more
2025Science36 citations Open access
Semantic Scholar
Systematic KMTNet Planetary Anomaly Search. V. Complete Sample of 2018 Prime-Field
A. Gould, Cheongho Han, W. Zang, Hong-Jing Yang +64 more
202230 citations Open access
Semantic Scholar
Mass Production of 2021 KMTNet Microlensing Planets. I
I. Shin, J. Yee, A. Gould, K. Hwang +44 more
2022Astronomical Journal19 citations Open access
Semantic Scholar
Systematic KMTNet Planetary Anomaly Search. IX. Complete Sample of 2016 Prime-field Planets
I. Shin, J. Yee, W. Zang, Hong-Jing Yang +57 more
2023Astronomical Journal16 citations Open access
Semantic Scholar
The PRime-focus Infrared Microlensing Experiment (PRIME): First Results
T. Sumi, D. Buckley, A. Kutyrev, Motohide Tamura +36 more
2025Astronomical Journal12 citations Open access
Semantic Scholar
Free-Floating planet Mass Function from MOA-II 9-year survey towards the Galactic Bulge
T. Sumi, N. Koshimoto, D. Bennett, N. Rattenbury +24 more
202310 citations
Semantic Scholar
Systematic KMTNet Planetary Anomaly Search. XI. Complete Sample of 2016 Subprime Field Planets
I. Shin, J. Yee, W. Zang, Cheongho Han +62 more
2024Astronomical Journal9 citations Open access
Semantic Scholar
Optical Alignment Method for the PRIME Telescope
H. Yama, D. Suzuki, S. Miyazaki, A. Rakich +6 more
2023Journal of Astronomical Instrumentation9 citations Open access
Semantic Scholar
Systematic Reanalysis of KMTNet Microlensing Events. II. Two New Planets in Giant-source Events
Hong-Jing Yang, J. Yee, Ji-Yuan Zhang, Chung-Uk Lee +60 more
2025Astronomical Journal8 citations Open access
Semantic Scholar
KMT-2021-BLG-1077L: The fifth confirmed multiplanetary system detected by microlensing
Cheongho Han, A. Gould, I. Bond, Y. Jung +44 more
2022Astronomy & Astrophysics8 citations Open access
Semantic Scholar
MOA-2022-BLG-033Lb, KMT-2023-BLG-0119Lb, and KMT-2023-BLG-1896Lb: Three low mass-ratio microlensing planets detected through dip signals
Cheongho Han, I. Bond, Y. Jung, M. Albrow +44 more
2025Astronomy & Astrophysics7 citations Open access
Semantic Scholar
Differentiable Modeling of Planet and Substellar Atmosphere: High-resolution Emission, Transmission, and Reflection Spectroscopy with ExoJAX2
H. Kawahara, Y. Kawashima, Shotaro Tada, H. Ishikawa +10 more
2024Astrophysical Journal7 citations Open access
Semantic Scholar
KMT-2022-BLG-0440Lb: A new q < 10−4 microlensing planet with the central-resonant caustic degeneracy broken
Ji-Yuan Zhang, W. Zang, Y. Jung, Hong-Jing Yang +56 more
2023Monthly notices of the Royal Astronomical Society7 citations Open access
Semantic Scholar
Supplement: “An Isolated Mass-gap Black Hole or Neutron Star Detected with Astrometric Microlensing” (2022, ApJL, 933, L23)
Casey Y. Lam, Jessica R. Lu, A. Udalski, I. Bond +41 more
20227 citations Open access
Semantic Scholar
Mass Production of 2021 KMTNet Microlensing Planets. III. Analysis of Three Giant Planets
I. Shin, J. Yee, A. Gould, K. Hwang +44 more
2022Astronomical Journal7 citations Open access
Semantic Scholar
KMT-2021-BLG-0912Lb: A microlensing super Earth around a K-type star
Cheongho Han, I. Bond, J. Yee, W. Zang +54 more
2021Astronomy & Astrophysics7 citations Open access
Semantic Scholar
The Microlensing Event Rate and Optical Depth from MOA-II 9 Yr Survey Toward the Galactic Bulge
K. Nunota, T. Sumi, N. Koshimoto, N. Rattenbury +22 more
2024Astrophysical Journal6 citations Open access
Semantic Scholar
MOA-2020-BLG-135Lb: A New Neptune-class Planet for the Extended MOA-II Exoplanet Microlens Statistical Analysis
Stela Ishitani Silva, C. Ranc, D. Bennett, I. Bond +32 more
2022Astronomical Journal6 citations Open access
Semantic Scholar
Dark lens candidates from Gaia Data Release 3
K. Kruszy'nska, L. Wyrzykowski, K. Rybicki, K. Howil +47 more
2024Astronomy & Astrophysics5 citations Open access
Semantic Scholar
Four sub-Jovian-mass planets detected by high-cadence microlensing surveys
Cheongho Han, Doeon Kim, A. Gould, A. Udalski +56 more
20225 citations Open access
Semantic Scholar
KMT-2025-BLG-1616Lb: First Microlensing Bound Planet From DREAMS
Hong-Jing Yang, W. Zang, Y. Ryu, T. Sumi +58 more
2026Astronomical Journal4 citations Open access
Semantic Scholar
ExoJAX Retrievals of VLT/CRIRES Spectra of Luhman 16AB: C/O Ratios and Systematic Uncertainties
H. Yama, Kento Masuda, Yui Kawashima, H. Kawahara
2025Astrophysical Journal4 citations Open access
Semantic Scholar
Microlensing brown-dwarf companions in binaries detected during the 2022 and 2023 seasons
Cheongho Han, I. Bond, A. Udalski, Chung-Uk Lee +62 more
2024Astronomy & Astrophysics4 citations Open access
Semantic Scholar
KMT-2023-BLG-1431Lb: A New q < 10−4 Microlensing Planet from a Subtle Signature
Aislyn Bell, Ji-Yuan Zhang, W. Zang, Y. Jung +70 more
2023Publications of the Astronomical Society of the Pacific4 citations Open access
Semantic Scholar
Kepler K2 Campaign 9: II. First space-based discovery of an exoplanet using microlensing
D. Specht, R. Poleski, M. Penny, E. Kerins +82 more
2022Monthly notices of the Royal Astronomical Society4 citations Open access
Semantic Scholar
MOA-2022-BLG-091Lb and KMT-2024-BLG-1209Lb: Microlensing planets detected through weak caustic-crossing signals
Cheongho Han, Chung-Uk Lee, A. Udalski, I. Bond +65 more
2025Astronomy & Astrophysics3 citations Open access
Semantic Scholar
KMT-2021-BLG-0284, KMT-2022-BLG-2480, and KMT-2024-BLG-0412: Three microlensing events involving two lens masses and two source stars
Cheongho Han, A. Udalski, I. Bond, Chung-Uk Lee +58 more
2024Astronomy & Astrophysics3 citations Open access
Semantic Scholar
KMT-2023-BLG-1866Lb: Microlensing super-Earth around an M dwarf host
Cheongho Han, I. Bond, A. Udalski, Chung-Uk Lee +63 more
2024Astronomy & Astrophysics3 citations Open access
Semantic Scholar
Probable brown dwarf companions detected in binary microlensing events during the 2018-2020 seasons of the KMTNet survey
Cheongho Han, Y. Jung, Doeon Kim, A. Gould +47 more
2023Astronomy & Astrophysics3 citations Open access
Semantic Scholar
A Comprehensive Analysis of Three Microlensing Planet Candidates with the Planet/Binary Degeneracy
Ji-Yuan Zhang, W. Zang, Y. Ryu, T. Sumi +64 more
2025Monthly notices of the Royal Astronomical Society2 citations Open access
Semantic Scholar
KMT-2022-BLG-1818Lb,c: A Cold Super-Jupiter with a Saturn Sibling
Hong-Yu Li, Ji-Yuan Zhang, Cheongho Han, W. Zang +71 more
2025Astronomical Journal2 citations Open access
Semantic Scholar
OGLE-2018-BLG-0971, MOA-2023-BLG-065, and OGLE-2023-BLG-0136: Microlensing events with prominent orbital effects
Cheongho Han, A. Udalski, I. Bond, Chung-Uk Lee +59 more
2024Astronomy & Astrophysics2 citations Open access
Semantic Scholar
Four microlensing giant planets detected through signals produced by minor-image perturbations
Cheongho Han, I. Bond, Chung-Uk Lee, A. Gould +62 more
2024Astronomy & Astrophysics2 citations Open access
Semantic Scholar
Analysis of the Full Spitzer Microlensing Sample. I. Dark Remnant Candidates and Gaia Predictions
K. Rybicki, Y. Shvartzvald, J. Yee, S. C. Novati +69 more
2024Astrophysical Journal2 citations Open access
Semantic Scholar
OGLE-2019-BLG-0825: Constraints on the Source System and Effect on Binary-lens Parameters Arising from a Five-day Xallarap Effect in a Candidate Planetary Microlensing Event
Y. Satoh, N. Koshimoto, D. Bennett, T. Sumi +85 more
2023Astronomical Journal2 citations Open access
Semantic Scholar
KMT-2022-BLG-0475Lb and KMT-2022-BLG-1480Lb: Microlensing ice giants detected via non-caustic-crossing channel
Cheongho Han, Chung-Uk Lee, I. Bond, W. Zang +48 more
2023Astronomy & Astrophysics2 citations Open access
Semantic Scholar
Brown-dwarf companions in microlensing binaries detected during the 2016--2018 seasons
Cheongho Han, Y. Ryu, I. Shin, Y. Jung +59 more
2022Astronomy & Astrophysics2 citations Open access
Semantic Scholar
MOA-2019-BLG-008Lb: A New Microlensing Detection of an Object at the Planet/Brown Dwarf Boundary
É. Bachelet, Y. Tsapras, A. Gould, R. Street +67 more
2022Astronomical Journal2 citations Open access
Semantic Scholar
OGLE-2016-BLG-1093Lb: A Sub-Jupiter-mass Spitzer Planet Located in the Galactic Bulge
I. Shin, J. Yee, K. Hwang, A. Gould +60 more
2022Astronomical Journal2 citations Open access
Semantic Scholar
MOA-2020-BLG-208Lb: Cool Sub-Saturn-mass Planet within Predicted Desert
G. Olmschenk, D. Bennett, I. Bond, W. Zang +73 more
2022Astronomical Journal2 citations Open access
Semantic Scholar
Mass Production of 2023 KMTNet Microlensing Planets. II. Two Planets and A Brown Dwarf
Zhi-Xing Li, Hong-Yu Li, W. Zang, Y. Ryu +62 more
2026Astronomical Journal1 citations Open access
Semantic Scholar
Candidate Microlensing Brown Dwarfs in Binary Lens Systems from the 2023–2025 Observing Seasons
Cheongho Han, A. Udalski, I. Bond, Chung-Uk Lee +61 more
2026Astronomical Journal1 citations Open access
Semantic Scholar
Six microlensing planets detected via sub-day signals during the 2023--2024 season
Cheongho Han, Chung-Uk Lee, A. Udalski, I. Bond +57 more
2025Astronomy & Astrophysics1 citations Open access
Semantic Scholar
Analyses of anomalous lensing events detected from the UKIRT microlensing survey
Cheongho Han, W. Zang, A. Udalski, Chung-Uk Lee +60 more
2025Astronomy & Astrophysics1 citations Open access
Semantic Scholar
Four binary microlenses with directly measured masses
Cheongho Han, A. Udalski, Chung-Uk Lee, I. Bond +57 more
2025Astronomy & Astrophysics1 citations Open access
Semantic Scholar
Six binary brown dwarf candidates identified by microlensing
Cheongho Han, Chung-Uk Lee, I. Bond, A. Udalski +56 more
2025Astronomy & Astrophysics1 citations Open access
Semantic Scholar
KMT-2022-BLG-0086: Another Binary-lens Binary-source Microlensing Event
S. Chung, K. Hwang, J. Yee, A. Gould +39 more
2025Astronomical Journal1 citations Open access
Semantic Scholar

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