Kenji Hamaguchi

Goddard Space Flight Center — United States

Physics and Astronomy · Physical Sciences

32h-index3.8kcitations313works5.22yr avg
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Research Topics

Stellar, planetary, and galactic studies(151), Astrophysical Phenomena and Observations(122), Astrophysics and Star Formation Studies(104), Gamma-ray bursts and supernovae(73), Astro and Planetary Science(63)

Publications313 total

Eclipsing Stellar Flare on the Demon Star Algol Binary System Observed during the MAXI–NICER Follow-up Campaign in 2018
The Astrophysical Journal·2025Open Access
Origin of the stellar Fe Kα line clarified with FUV and X-ray observations of a superflare on the RS Canum Venaticorum-type Star UX Arietis
arXiv (Cornell University)·2025Open Access
Chlorine and potassium enrichment in the Cassiopeia A supernova remnant
Nature Astronomy·2025Open Access
XRISM view of a stellar flare: High-resolution Fe K spectra of HR 1099, an RS CVn-type star
Publications of the Astronomical Society of Japan·2025Open Access
XRISM Constraints on Unidentified X-Ray Emission Lines, Including the 3.5 keV Line, in the Stacked Spectrum of 10 Galaxy Clusters
The Astrophysical Journal Letters·2025Open Access
XRISM/Resolve view of Abell 2319: Turbulence, sloshing, and ICM dynamics
Publications of the Astronomical Society of Japan·2025· 5 cited
Comparing XRISM Cluster Velocity Dispersions with Predictions from Cosmological Simulations: Are Feedback Models Too Ejective?
The Astrophysical Journal Letters·2025· 1 citedOpen Access
Eclipsing Stellar Flare on the Demon Star Algol Binary System Observed during the MAXI-NICER Follow-up Campaign in 2018
arXiv (Cornell University)·2025Open Access
Comparing XRISM cluster velocity dispersions with predictions from cosmological simulations: are feedback models too ejective?
arXiv (Cornell University)·2025Open Access
Development status of the SMILE-3 balloon experiment
2025Open Access
Investigation of the intrinsic detector background for SMILE-3 balloon experiment
2025Open Access
Stratified wind from a super-Eddington X-ray binary is slower than expected
Nature·2025· 3 citedOpen Access
Revealing the Accelerating Wind in the Inner Region of Colliding-wind Binary WR 112
The Astronomical Journal·2025· 1 citedOpen Access
In-orbit science operations for the X-Ray Imaging and Spectroscopy Mission
Journal of Astronomical Telescopes Instruments and Systems·2025
Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM
Publications of the Astronomical Society of Japan·2025· 10 citedOpen Access
XRISM/Resolve View of Abell 2319: Turbulence, Sloshing, and ICM Dynamics
arXiv (Cornell University)·2025Open Access
Thermal and kinematic properties of ejecta in SN1987A revealed by XRISM
Publications of the Astronomical Society of Japan·2025· 1 citedOpen Access
Kinematic Evidence for Bipolar Ejecta Flows in the Galactic Supernova Remnant W49B
The Astrophysical Journal Letters·2025· 1 citedOpen Access
Carbon-rich Dust Injected into the Interstellar Medium by Galactic WC Binaries Survives for Hundreds of Years
The Astrophysical Journal·2025· 6 citedOpen Access
Spectroscopic diagnostics of high-temperature plasma in stellar coronae using Fe <scp>xxiv</scp>–<scp>xxiv</scp> K-shell lines with XRISM
Publications of the Astronomical Society of Japan·2025· 4 citedOpen Access
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Frequent Co-authors

M. F. Corcoran(22), Christopher M. P. Russell(12), Thomas Madura(11), T. R. Gull(11), D. J. Hillier(10), Robert Petre(9), A. Damineli(9), Shunji Kitamoto(8), A. F. J. Moffat(8), Noel D. Richardson(8), J. M. Pittard(7), M. Teodoro(7), Yuichiro Ezoe(7), Hironori Matsumoto(6), Yoshitomo Maeda(6), Aya Bamba(6), J. H. Groh(6), Teruaki Enoto(6), Katsuji Koyama(5), Satoru Katsuda(5)