Curriculum Vitaes
Profile Information
- Affiliation
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
- Degree
- 博士(理学)(Mar, 2011, 青山学院大学)
- ORCID ID
https://orcid.org/0000-0001-9307-046X- J-GLOBAL ID
- 201801006299578336
- researchmap Member ID
- B000303523
Research Interests
8Research Areas
2Research History
4-
Jul, 2019 - Present
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Apr, 2017 - May, 2019
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Apr, 2012 - 2017
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Apr, 2011 - Apr, 2012
Awards
1-
Mar, 2018
Papers
135-
GEOPHYSICAL RESEARCH LETTERS, 52(13), Jul 7, 2025
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Journal of Space Science Informatics Japan, (23-007), Mar, 2024 Peer-reviewedCorresponding author
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Physical Review Letters, 131(19), Nov 9, 2023
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The cosmic-ray electron and positron spectrum measured with CALET on the International Space StationProceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 18, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 17, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 17, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 17, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 17, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 14, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 14, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 14, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), 1517-1517, Aug 9, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 8, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Aug 8, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), Jul 25, 2023
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Physical Review Letters, 130(21), May 25, 2023 Peer-reviewed
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Physical Review Letters, 130(17), Apr 27, 2023 Peer-reviewed
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Scientific reports, 12(1) 16300-16300, Oct 11, 2022
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Physical Review Letters, 129(10), Sep 1, 2022 Peer-reviewed
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The Astrophysical Journal, 933(1) 85-85, Jul 1, 2022Abstract The CALorimetric Electron Telescope (CALET) on the International Space Station consists of a high-energy cosmic-ray CALorimeter (CAL) and a lower-energy CALET Gamma-ray Burst Monitor (CGBM). CAL is sensitive to electrons up to 20 TeV, cosmic-ray nuclei from Z = 1 through Z ∼ 40, and gamma rays over the range 1 GeV–10 TeV. CGBM observes gamma rays from 7 keV to 20 MeV. The combined CAL-CGBM instrument has conducted a search for gamma-ray bursts (GRBs) since 2015 October. We report here on the results of a search for X-ray/gamma-ray counterparts to gravitational-wave events reported during the LIGO/Virgo observing run O3. No events have been detected that pass all acceptance criteria. We describe the components, performance, and triggering algorithms of the CGBM—the two Hard X-ray Monitors consisting of LaBr3(Ce) scintillators sensitive to 7 keV–1 MeV gamma rays and a Soft Gamma-ray Monitor BGO scintillator sensitive to 40 keV–20 MeV—and the high-energy CAL consisting of a charge detection module, imaging calorimeter, and the fully active total absorption calorimeter. The analysis procedure is described and upper limits to the time-averaged fluxes are presented.
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Proceedings of Science, 398, May 12, 2022
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Physical Review Letters, 128(13), Apr 1, 2022 Peer-reviewed
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Geophysical Research Letters, 49(6), Mar 28, 2022
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The Astrophysical Journal, 927(2) 151-151, Mar 1, 2022
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Physical Review Letters, 126(24), Jun 14, 2021
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The Astrophysical Journal, 910(1) 25-25, Mar 31, 2021
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ASTROPHYSICAL JOURNAL, 910(2), Feb 15, 2021
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Physical review letters, 125(25) 251102-251102, Dec 18, 2020In this paper, we present the measurement of the energy spectra of carbon and oxygen in cosmic rays based on observations with the Calorimetric Electron Telescope on the International Space Station from October 2015 to October 2019. Analysis, including the detailed assessment of systematic uncertainties, and results are reported. The energy spectra are measured in kinetic energy per nucleon from 10 GeV/n to 2.2 TeV/n with an all-calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length. The observed carbon and oxygen fluxes show a spectral index change of ∼0.15 around 200 GeV/n established with a significance >3σ. They have the same energy dependence with a constant C/O flux ratio 0.911±0.006 above 25 GeV/n. The spectral hardening is consistent with that measured by AMS-02, but the absolute normalization of the flux is about 27% lower, though in agreement with observations from previous experiments including the PAMELA spectrometer and the calorimetric balloon-borne experiment CREAM.
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Journal of Geophysical Research: Space Physics, 125(9), Aug 14, 2020 Peer-reviewed
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The Astrophysical Journal, 899(1) L20-L20, Aug 13, 2020 Peer-reviewed
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Physica Scripta, 95(7) 074012-074012, Jul 1, 2020
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Space Weather, 18(7), Jul, 2020
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PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 72(2), Dec 2, 2019 Peer-reviewed
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Publications of the Astronomical Society of Japan, 71(5), Oct 1, 2019 Peer-reviewed
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Physical Review Letters, 122(18), May 10, 2019 Peer-reviewed
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Astrophysical Journal, 874(2), Apr, 2019 Peer-reviewed
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ASTRONOMICAL DATA ANALYSIS SOFTWARE AND SYSTEMS XXVIII, 523 515-518, 2019
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Astrophysical Journal, 868(1), Nov 20, 2018 Peer-reviewed
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Astrophysical Journal, Supplement Series, 238(2), Oct, 2018 Peer-reviewed
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Publications of the Astronomical Society of Japan, 70(5), Oct 1, 2018 Peer-reviewed
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Publications of the Astronomical Society of Japan, 70(5), Oct 1, 2018 Peer-reviewed
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Astrophysical Journal, Supplement Series, 238(1), Sep, 2018 Peer-reviewed
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Astrophysical Journal, 863(2), Aug 20, 2018 Peer-reviewed
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Astroparticle Physics, 100 29-37, Jul, 2018 Peer-reviewed
Misc.
116-
地球電磁気・地球惑星圏学会総会及び講演会(Web), 156th, 2024
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地球電磁気・地球惑星圏学会総会及び講演会(Web), 156th, 2024
Presentations
167-
GrafanaCON 2024, Apr 9, 2024 Invited
Teaching Experience
1-
Oct, 2025 - Dec, 2025
Works
2-
May 1, 2018 - Present Web Service
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Oct 1, 2011 - Present Web Service
Research Projects
2-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2013 - Mar, 2017
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Jun, 2012 - Mar, 2017
Media Coverage
1-
https://www.isas.jaxa.jp/topics/003206.html, Oct, 2022