TSUNEFUMI MIZUNO

Last Updated :2025/06/22

Affiliations, Positions
Hiroshima Astrophysical Science Center, Associate Professor
E-mail
tsunehiroshima-u.ac.jp
Self-introduction
I have been studying cosmic rays, relativistic charged particles originating outside of the solar system. Instead of measuring cosmic rays directly, I use X-rays and gamma-rays and "observe" cosmic rays at the accelerators (such as black-holes) or in the interstellar space, in order to understand where they are produced and how they propagate through the interstellar space. For this purpose, I have been using Japanese X-ray satellite "Suzaku" and other X-ray satellite data, and all-sky gamma-ray data of international gamma-ray satellite "Fermi". I also aim to measure polarization of X-rays and gamma-rays from black-hole binaries and pulsars in order to obtain information on the structure of accretion disk and magnatic field which is difficult (or impossible) to obtain from the imaging. For this purpose I participated in the international baloon mission "PoGO+", and participate in the X-ray polarimetry mission "IXPE".

Basic Information

Academic Degrees

  • Doctor of Science, The University of Tokyo
  • Master of Science, The University of Tokyo
  • Bachelor of Science, The University of Tokyo

Educational Activity

  • [Bachelor Degree Program] School of Science : Physics : Physics
  • [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Physics Program
  • [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Physics Program

Research Fields

  • Mathematical and physical sciences;Astronomy;Astronomy

Research Keywords

  • Fermi Satellite

Educational Activity

Course in Charge

  1. 2025, Undergraduate Education, First Semester, Exercises of Physics
  2. 2025, Undergraduate Education, First Semester, Special Study for Graduation A
  3. 2025, Undergraduate Education, Second Semester, Special Study for Graduation B
  4. 2025, Graduate Education (Master's Program) , 1Term, X-ray and Gamma-ray Astrophysics
  5. 2025, Graduate Education (Master's Program) , First Semester, Exercise in Physics I
  6. 2025, Graduate Education (Master's Program) , Second Semester, Exercise in Physics II
  7. 2025, Graduate Education (Master's Program) , First Semester, Special Exsecise in Physics A
  8. 2025, Graduate Education (Master's Program) , Second Semester, Special Exsecise in Physics B
  9. 2025, Graduate Education (Master's Program) , Year, Special Research in Physics
  10. 2025, Graduate Education (Doctoral Program) , Year, Special Research in Physics

Research Activities

Academic Papers

  1. Suzaku Observation of the Fermi Cygnus Cocoon: Search for a Signature of Young Cosmic-Ray Electrons, 20150204
  2. Analysis of Crab X-Ray Polarization Using Deeper Imaging X-Ray Polarimetry Explorer Observations, ASTROPHYSICAL JOURNAL, 973(2), 20241001
    Link to Paper Search Results by DOI
  3. Magnetic-field structure of the Crab pulsar wind nebula revealed with IXPE, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 75(6), 1298-1310, 20231209
    Link to Paper Search Results by DOI
  4. Gas and Cosmic-Ray Properties in the MBM 53, 54, and 55 Molecular Clouds and the Pegasus Loops Revealed by H i Line Profiles, Dust, and Gamma-Ray Data, ASTROPHYSICAL JOURNAL, 935(2), 20220801
    Link to Paper Search Results by DOI
  5. QUANTIFYING THE INTERSTELLAR MEDIUM AND COSMIC RAYS IN THE MBM 53, 54, AND 55 MOLECULAR CLOUDS AND THE PEGASUS LOOP USING FERMI-LAT GAMMA-RAY OBSERVATIONS, ASTROPHYSICAL JOURNAL, 833(2), 20161220
    Link to Paper Search Results by DOI
  6. ★, X-Ray Studies of the Extended TeV Gamma-Ray Source VER J2019+368, ASTROPHYSICAL JOURNAL, 841(2), 20170601
    Link to Paper Search Results by DOI
  7. Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 70(6), 201812
    Link to Paper Search Results by DOI
  8. Study of the Cosmic Rays and Interstellar Medium in Local HI Clouds Using Fermi-LAT Gamma-Ray Observations, ASTROPHYSICAL JOURNAL, 890(2), 20200220
    Link to Paper Search Results by DOI

Invited Lecture, Oral Presentation, Poster Presentation

  1. Recent Results of Black Holes by Imaging X-ray Polarimetry Explorer IXPE, T. Mizuno et al., Black-Hole Jet Workshop 2025, 2025/03/06, With Invitation, English
  2. Detection Principle in MeV/GeV Gamma-Ray Observations, T. Mizuno, Beginner's Workshop of MultiMessenger Consortium, 2025/02/20, With Invitation, English
  3. CAMELOT and IXPE: All-Sky Monitoring and Polarimetry for Multimessenger Astrophyscs (2), T. Mizuno et al., Multimessenger Astrophysics Workshop 2024, 2024/11/18, With Invitation, English
  4. IXPE View of the Pulsar Wind Nebulae, T. Mizuno et al., SNR Workshop 2024, 2024/03/01, With Invitation, Japanese
  5. CAMELOT and IXPE: All-Sky Monitoring and Polarimetry for Multimessenger Astrophyscs, T. Mizuno et al., Multimessenger Astrophysics Workshop 2023, 2023/12/05, With Invitation, English
  6. Fecent Results of Fermi: Its Role in the Era of Multimessenger/Multiwavelength Astrophysics, T. Mizuno et al., Kyoto Symposium (Physics of the Two Infinities), 2023/03/27, With Invitation, English
  7. Fecent Results of Fermi: Its Role in the Era of Multimessenger/Multiwavelength Astrophysics, T. Mizuno et al., KMI2023 Symposium,, 2023/02/21, With Invitation, English
  8. Initial Results of X-ray Polarimetry Mission IXPE, T. Mizuno et al., High Energy Astrophysics Workshop 2022, 2022/11/10, With Invitation, Japanese
  9. Cosmic-Ray Properties in the MBM 53-55 Clouds and the Pegasus Loop as Revealed by HI Line Profiles, Dust, and Gamma-Ray Data, T. Mizuno et al., COSPAR 2022, 2022/07/20, With Invitation, English
  10. Recent results with Fermi-LAT gamma-ray space telescope, T. Mizuno et al., ISAS Space Science Colloquium & Space Science Seminar, 2021/10/11, With Invitation, English
  11. X-ray Polarimetry Mission IXPE, T. Mizuno et al., OISTER Workshop, 2020/11/11, With Invitation, Japanese
  12. Indirect Search form DM Signal from Galactic Center, T. Mizuno et al., The 2nd DMNet International SymposiumI, 2020/09/15, With Invitation, English
  13. Polarization Measurement of Crab Nebula by Hitomi-SGD, T. Mizuno et al., Polarization Research Group Meeting, 2018/09/18, With Invitation, Japanese
  14. Multi Messenger Astronomy: gamma-rays, T. Mizuno, Special Lectures on Multi Messenger Astronomy, 2018/09/12, With Invitation, Japanese
  15. Study of the ISM and CRs in MBM 53,54,55 Clouds and the Pegasus Loop, T. Mizuno et al., Interstellar Hydrogen Workshop, 2016/09/28, With Invitation, English
  16. How Do We Operate X-ray Satellites? --Proposal, Planning and Operation--, Tsunefumi Mizuno, Annual Meeting of the Japan Society for Aeronautical and Space Science Western Branch, 2015/12/04, With Invitation, Japanese
  17. Study of Cosmic-rays and Interstellar Medium with Cosmic Gamma-ray Observations, Tsunefumi Mizuno, Summer School of Young Researcher Association in Astronomy and Astrophysics, 2015/07/29, With Invitation, Japanese

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI(Grant-in-Aid for Scientific Research (B)), 2023, 2025
  2. KAKENHI(Grant-in-Aid for Scientific Research (B)), 2017, 2020
  3. KAKENHI, 2013, 2015
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  4. KAKENHI, Study of cosmic-ray energy and spatial distribution by observing Galactic diffuse gamma-ray emission, 2009, 2011
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  5. KAKENHI, 2008, 2008
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  6. KAKENHI, X-ray Image Reconstruction for Study on Astronomical Cosmic-Ray Acceleration Sites and Development of X-ray Polarimeter, 2006, 2008
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  7. KAKENHI, Development of an astronomical Polarimeter and study of galactic compact object, 2006, 2008
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Social Activities

History as Committee Members

  1. Representative of Cosmic Ray and Astrophysics Division, JPS, 2021/04, 2022/03, Cosmic Ray and Astrophysics Division, JPS
  2. Vice Representative of Cosmic Ray and Astrophysics Division, JPS, 2020/04, 2021/03, Cosmic Ray and Astrophysics Division, JPS
  3. Fermi-LAT Diffuse Group Coordinator, 2017/04, 2019/03, Fermi-LAT Collaboration

Organizing Academic Conferences, etc.

  1. 2015/03, 2015/03
  2. 2017/03, 2017/03