Updated on 2022/03/26

写真a

 
HAYAKAWA Hisashi
 
Organization
Institute for Advanced Research Designated assistant professor
Institute for Space-Earth Environmental Research Designated assistant professor
Title
Designated assistant professor
Profile
I am researching solar-terrestrial environments, space weather, and environmental history.

Degree 2

  1. PhD (Science) ( 2020.3   Kyoto University ) 

  2. PhD (Letters) ( 2020.3   Osaka University ) 

Research Interests 7

  1. Solar-Terrestrial Environments

  2. Space Weather

  3. Environmental History

  4. Solar Physics

  5. Geomagnetism

  6. Oriental History

  7. History of Science

Research Areas 7

  1. Natural Science / Astronomy  / Solar-Terrestrial Environments

  2. Natural Science / Human geosciences  / Space Weather

  3. Humanities & Social Sciences / Historical studies in general  / Environmental History

  4. Natural Science / Astronomy  / Solar Physics

  5. Natural Science / Human geosciences  / Geomagnetism

  6. Humanities & Social Sciences / Sociology of science, history of science and technology  / History of Science

  7. Humanities & Social Sciences / History of Asia and Africa  / Oriental History

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Research History 2

  1. Nagoya University   Institute for Advanced Research   Designated assistant professor

    2020.4

  2. Osaka University   Graduate School of Letters   JSPS Research Fellow

    2017.4 - 2020.3

Education 1

  1. Osaka University   Graduate School of Letters

    2017.4 - 2020.3

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    Notes: PhD course

Committee Memberships 3

  1. Geoscience Data Journal   Guest Editor  

    2021.3 - 2021.12   

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    Committee type:Academic society

  2. Advances in Space Research   Guest Editor  

    2020.11 - 2021.12   

  3. History of Geo- and Space Science   Topical Editor  

    2019.9   

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    Committee type:Academic society

Awards 2

  1. EPS Young Researcher Award

    2018.5   Earth Planets and Space  

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    Award type:Honored in official journal of a scientific society, scientific journal 

  2. Kyoto University Precident Prize

    2017.3   Kyoto University  

 

Papers 42

  1. Temporal Variations of the Three Geomagnetic Field Components at Colaba Observatory around the Carrington Storm in 1859 Reviewed International coauthorship

    Hayakawa, H., Nevanlinna, H., Blake, S. P., Ebihara, Y., Bhaskar, A. T., Miyoshi, Y.

    Astrophysical Journal   Vol. 928 ( 32 )   2022.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/ac2601

    DOI: 10.3847/1538-4357/ac2601

  2. Stephan Prantner’s Sunspot Observations during the Dalton Minimum Reviewed International coauthorship

    Hayakawa, H., Uneme, S., Besser, B. P., Iju, T., Imada, S.

    The Astrophysical Journal   Vol. 919   page: 1   2021.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abee1b

    DOI: 10.3847/1538-4357/abee1b

  3. The Extreme Space Weather Event in 1903 October/November: An Outburst from the Quiet Sun Reviewed International coauthorship

    Hayakawa Hisashi, Ribeiro Paulo, Vaquero Jose M., Cruz Gallego Maria, Knipp Delores J., Mekhaldi Florian, Bhaskar Ankush, Oliveira Denny M., Notsu Yuta, Carrasco Victor M. S., Caccavari Ana, Veenadhari Bhaskara, Mukherjee Shyamoli, Ebihara Yusuke

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 897   page: L10   2020.7

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/2041-8213/ab6a18

    Web of Science

    Scopus

  4. Thaddaus Derfflinger's Sunspot Observations during 1802-1824: A Primary Reference to Understand the Dalton Minimum Reviewed International coauthorship

    Hayakawa Hisashi, Besser Bruno P., Iju Tomoya, Arlt Rainer, Uneme Shoma, Imada Shinsuke, Bourdin Philippe-A., Kraml Amand

    ASTROPHYSICAL JOURNAL   Vol. 890   page: 98   2020.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/ab65c9

    Web of Science

    Scopus

  5. Temporal and Spatial Evolutions of a Large Sunspot Group and Great Auroral Storms around the Carrington Event in 1859 Invited Reviewed International coauthorship

    Hayakawa, H., Ebihara, Y., Willis, D. M., Toriumi, S., Iju, T., Hattori, K., Wild, M. N., Oliveira, D. M., Ermolli, I., Ribeiro, J. R., Correia, A. P., Ribeiro, A. I., Knipp, D. J.

    Space Weather   Vol. 17   page: 1553 - 1569   2019.11

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1029/2019SW002269

    DOI: 10.1029/2019SW002269

  6. A review for Japanese auroral records on the three extreme space weather events around the International Geophysical Year (1957–1958) Reviewed

    Hayakawa H., Ebihara Y., Hata H.

    Geoscience Data Journal     2022.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1002/gdj3.140

    DOI: 10.1002/gdj3.140

    Scopus

    Other Link: https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/gdj3.140

  7. Analyses of a datable solar eclipse record in Maya Classic period monumental inscriptions Reviewed International coauthorship

    Hayakawa Hisashi, Soma Misturu, Kinsman J. Hutch

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 73 ( 6 ) page: L31 - L36   2021.12

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/pasj/psab088

    Web of Science

    Scopus

  8. Analyses of Early Sunspot Records by Jean Tarde (1615-1617) and Jan Smogulecki (1621-1625) Reviewed

    Carrasco V. M. S., Gallego M. C., Alvarez J. Villalba, Vaquero J. M., Hayakawa H.

    SOLAR PHYSICS   Vol. 296 ( 11 )   2021.11

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    Authorship:Last author   Language:English  

    DOI: 10.1007/s11207-021-01905-2

    Web of Science

    Scopus

  9. Johann Christoph Müller’s Sunspot Observations in 1719 – 1720: Snapshots of the Immediate Aftermath of the Maunder Minimum Reviewed International coauthorship

    Hayakawa, H., Iju, T., Kuroyanagi, C., Carrasco, V. M. S., Besser, B. P., Uneme, S., Imada, S.

    SOLAR PHYSICS   Vol. 296 ( 154 )   2021.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11207-021-01880-8

    DOI: 10.1007/s11207-021-01880-8

  10. The extreme space weather events in October 1788 Reviewed

    Hattori Kentaro, Hayakawa Hisashi, Ebihara Yusuke

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 73 ( 5 ) page: 1367 - 1374   2021.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/pasj/psab079

    Web of Science

    Scopus

  11. Reanalyses of the sunspot observations of Fogelius and Siverus: two 'long-term' observers during the Maunder minimum Reviewed International coauthorship

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   Vol. 506 ( 1 ) page: 650 - 658   2021.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/mnras/staa2965

    DOI: 10.1093/mnras/staa2965

    Web of Science

  12. The extreme space weather events in October 1788 Reviewed

    Hattori, K., Hayakawa, H., Ebihara, Y.

    Publications of the Astronomical Society of Japan   Vol. 73   page: 1367 - 1374   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)  

  13. PSTEP: project for solar-terrestrial environment prediction Invited Reviewed International coauthorship

    Kusano, Kanya; Ichimoto, Kiyoshi; Ishii, Mamoru; Miyoshi, Yoshizumi; Yoden, Shigeo; Akiyoshi, Hideharu; Asai, Ayumi; Ebihara, Yusuke; Fujiwara, Hitoshi; Goto, Tada-Nori; Hanaoka, Yoichiro; Hayakawa, Hisashi; Hosokawa, Keisuke; Hotta, Hideyuki; Hozumi, Kornyanat; Imada, Shinsuke; Iwai, Kazumasa; Iyemori, Toshihiko; Jin, Hidekatsu; Kataoka, Ryuho; Katoh, Yuto; Kikuchi, Takashi; Kubo, Yûki; Kurita, Satoshi; Matsumoto, Haruhisa; Mitani, Takefumi; Miyahara, Hiroko; Miyoshi, Yasunobu; Nagatsuma, Tsutomu; Nakamizo, Aoi; Nakamura, Satoko; Nakata, Hiroyuki; Nishizuka, Naoto; Otsuka, Yuichi; Saito, Shinji; Saito, Susumu; Sakurai, Takashi; Sato, Tatsuhiko; Shimizu, Toshifumi; Shinagawa, Hiroyuki; Shiokawa, Kazuo; Shiota, Daikou; Takashima, Takeshi; Tao, Chihiro; Toriumi, Shin; Ueno, Satoru; Watanabe, Kyoko; Watari, Shinichi; Yashiro, Seiji; Yoshida, Kohei; Yoshikawa, Akimasa

    Earth, Planets and Space   Vol. 73   page: 159   2021.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s40623-021-01486-1

    DOI: 10.1186/s40623-021-01486-1

  14. Strong evidence of low levels of solar activity during the Maunder Minimum Reviewed International coauthorship

    Carrasco, V. M. S., Hayakawa, H., Kuroyanagi, C., Gallego, M. C., Vaquero, J. M.

    Monthly Notices of the Royal Astronomical Society     2021.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/mnras/stab1155

    DOI: 10.1093/mnras/stab1155

  15. Timelines as a tool for learning about space weather storms Invited Reviewed International coauthorship

    Knipp, D. J., Bernstein, V., Wahl, K., Hayakawa, H.

    Journal of Space Weather and Space Climate   Vol. 11   page: 29 - 29   2021.4

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    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1051/swsc/2021011

    DOI: 10.1051/swsc/2021011

  16. The intensity and evolution of the extreme storms in 1938 January Reviewed International coauthorship

    Hayakawa, H., Hattori, K., Pevtsov, A. A., Ebihara, Y., Shea, M. A., McCracken, K. G., Daglis, I. A., Bhaskar, A., Ribeiro, P., Knipp, D. J.

    Astrophysical Journal   Vol. 909   page: 197   2021.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abc427

    DOI: 10.3847/1538-4357/abc427

  17. Three Case Reports on the Cometary Plasma Tail in the Historical Documents Reviewed

    Hayakawa, H., Fujii, Y. I., Murata, K., Mitsuma, Y., Cheng, Y., Nogami, N., Ichikawa, K., Sano, H., Tsumura, K., Kawamoto, Y., Nishino, M. N.

    Journal of Space Weather and Space Climate   Vol. 11   page: 21   2021.3

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1051/swsc/2020045

    DOI: 10.1051/swsc/2020045

  18. Candidate Auroral Observations Indicating a Major Solar–Terrestrial Storm in 1680: Implication for Space Weather Events during the Maunder Minimum Reviewed International coauthorship

    Hayakawa, H., Schlegel, K., Besser, B. P., Ebihara, Y.

    Astrophysical Journal   Vol. 909   page: 29   2021.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abb3c2

    DOI: 10.3847/1538-4357/abb3c2

  19. Sunspot Observations at the Eimmart Observatory and its Neighbourhood during the Late Maunder Minimum (1681 – 1718) Reviewed International coauthorship

    Hayakawa, H., Kuroyanagi, C., Carrasco, V. M. S., Uneme, S., Besser, B. P., Sôma, M., Imada, S.

    Astrophysical Journal   Vol. 909   page: 166   2021.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abd949

    DOI: 10.3847/1538-4357/abd949

  20. Daniel Mögling's sunspot observations in 1626 - 1629: A manuscript reference for the solar activity before the Maunder Minimum Reviewed International coauthorship

    Hayakawa, H., Iju, T., Murata, K., Besser, B. P.

    Astrophysical Journal   Vol. 909   page: 194   2021.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abdd34

    DOI: 10.3847/1538-4357/abdd34

  21. Graphical evidence for the solar coronal structure during the Maunder minimum: Comparative study of the total eclipse drawings in 1706 and 1715 Reviewed International coauthorship

    Hayakawa H. Lockwood, M., Owens, M. J., Sôma, M., Besser, B. P., van Driel, L.

    Journal of Space Weather and Space Climate   Vol. 11   page: 1   2021.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1051/swsc/2020035

    Scopus

  22. The Extreme Space Weather Event in 1941 February/March Reviewed International coauthorship

    Hayakawa, H., Blake, S. P., Bhaskar, A., Hattori, K., Oliveira, D. M., Ebihara, Y.

    Astrophysical Journal   Vol. 908   page: 209   2021.2

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abb772

    DOI: 10.3847/1538-4357/abb772

  23. The Dalton Minimum and John Dalton’s Auroral Observations Reviewed International coauthorship

    Silverman, S. M., Hayakawa, H.

    Journal of Space Weather and Space Climate   Vol. 11   page: 17   2021.2

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    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1051/swsc/2020082

    DOI: 10.1051/swsc/2020082

  24. Cometary records revise Eastern Mediterranean chronology around 1240 CE Reviewed

    Murata, K., Ichikawa, K., Fujii, Y. I., Hayakawa, H., Cheng, Y., Kawamoto, Y., Sano, H.

    Publications of the Astronomical Society of Japan   Vol. 73   page: 197 - 204   2021.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/pasj/psaa114

    DOI: 10.1093/pasj/psaa114

  25. [研究活動]研究トピックス : 歴史文献とアナログ観測記録に見る宇宙天気現象と太陽活動 Invited

    早川 尚志

    京都大学大学院理学研究科附属天文台年次報告   Vol. 2019年(令和元年)   page: 20 - 21   2021.1

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    Language:Japanese   Publisher:京都大学大学院理学研究科附属天文台  

    CiNii Research

  26. On the Size of the Flare Associated with the Solar Proton Event in 774 AD Reviewed International coauthorship

    ASTROPHYSICAL JOURNAL   Vol. 903   page: 41   2020.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/abad93

    Web of Science

    Scopus

  27. Estimating Satellite Orbital Drag During Historical Magnetic Superstorms Reviewed International coauthorship

    Oliveira Denny M., Zesta Eftyhia, Hayakawa Hisashi, Bhaskar Ankush

    SPACE WEATHER-THE INTERNATIONAL JOURNAL OF RESEARCH AND APPLICATIONS   Vol. 18 ( 11 ) page: e2020SW002472   2020.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1029/2020SW002472

    Web of Science

    Scopus

  28. Intensity and time series of extreme solar-terrestrial storm in 1946 March Reviewed International coauthorship

    Hayakawa Hisashi, Ebihara Yusuke, Pevtsov Alexei A., Bhaskar Ankush, Karachik Nina, Oliveira Denny M.

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   Vol. 497 ( 4 ) page: 5507 - 5517   2020.10

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    Authorship:Lead author, Last author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/mnras/staa1508

    Web of Science

    Scopus

  29. An Analysis of Trouvelot's Auroral Drawing on 1/2 March 1872: Plausible Evidence for Recurrent Geomagnetic Storms Reviewed International coauthorship

    Bhaskar Ankush, Hayakawa Hisashi, Oliveira Denny M., Blake Sean, Silverman Sam M., Ebihara Yusuke

    JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS   Vol. 125 ( 10 ) page: e2020JA028227   2020.10

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1029/2020JA028227

    Web of Science

    Scopus

  30. The Solar Corona during the Total Eclipse on 1806 June 16: Graphical Evidence of the Coronal Structure during the Dalton Minimum Reviewed International coauthorship

    Hayakawa Hisashi, Owens Mathew J., Lockwood Michael, Soma Mitsuru

    ASTROPHYSICAL JOURNAL   Vol. 900   page: 114   2020.9

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/1538-4357/ab9807

    Web of Science

    Scopus

  31. South American auroral reports during the Carrington storm Reviewed International coauthorship

    Hayakawa Hisashi, Ribeiro Jose R., Ebihara Yusuke, Correia Ana P., Soma Mitsuru

    EARTH PLANETS AND SPACE   Vol. 72   page: 122   2020.8

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s40623-020-01249-4

    Web of Science

    Scopus

  32. A possible case of sporadic aurora observed at Rio de Janeiro Reviewed International coauthorship

    Oliveira Denny M., Hayakawa Hisashi, Bhaskar Ankush, Zesta Eftyhia, Vichare Geeta

    EARTH PLANETS AND SPACE   Vol. 72   page: 82   2020.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s40623-020-01208-z

    Web of Science

    Scopus

  33. Provenance of the cross sign of 806 in the Anglo-Saxon Chronicle: a possible lunar halo over continental Europe? International coauthorship

    Uchikawa Yuta, Cowley Les, Hayakawa Hisashi, Willis David M., Stephenson F. Richard

    HISTORY OF GEO- AND SPACE SCIENCES   Vol. 11 ( 1 ) page: 81 - 92   2020.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.5194/hgss-11-81-2020

    Web of Science

    Scopus

  34. Sunspot Observations by Hisako Koyama: 1945 – 1996 Reviewed International coauthorship

    Hayakawa, H., Clette, F., Horaguchi, T., Iju, T., Knipp, D. J., Liu, H., Nakajima, T.

    Monthly Notices of the Royal Astronomical Society   Vol. 492   page: 4513 - 4527   2020.3

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/mnras/stz3345

  35. Further Search for Extreme Events

    Miyake F., Ebihara Y., Hayakawa H., Maehara H., Mitsuma Y., Usoskin I., Wang F., Willis D. M.

    EXTREME SOLAR PARTICLE STORMS: THE HOSTILE SUN     2020

  36. Characterization of the Measured Events

    Cliver E., Ebihara Y., Hayakawa H., Jull T., Mekhaldi F., Miyake F., Muscheler R.

    EXTREME SOLAR PARTICLE STORMS: THE HOSTILE SUN     2020

  37. What Can Be Learned from Modern Data?

    Kusano K., Cliver E., Hayakawa H., Kovaltsov G. A., Usoskin I. G.

    EXTREME SOLAR PARTICLE STORMS: THE HOSTILE SUN     2020

  38. The Earliest Candidates of Auroral Observations in Assyrian Astrological Reports: Insights on Solar Activity around 660 BCE Reviewed International coauthorship

    Hayakawa Hisashi, Mitsuma Yasuyuki, Ebihara Yusuke, Miyake Fusa

    ASTROPHYSICAL JOURNAL LETTERS   Vol. 884   page: L18   2019.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3847/2041-8213/ab42e4

    Web of Science

    Scopus

  39. A Transit of Venus Possibly Misinterpreted as an Unaided-Eye Sunspot Observation in China on 9 December 1874

    Hayakawa Hisashi, Soma Mitsuru, Tanikawa Kiyotaka, Willis David M., Wild Matthew N., Macdonald Lee T., Imada Shinsuke, Hattori Kentaro, Stephenson F. Richard

    SOLAR PHYSICS   Vol. 294 ( 9 )   2019.9

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    Publisher:Solar Physics  

    DOI: 10.1007/s11207-019-1504-9

    Web of Science

    Scopus

  40. Revisiting Kunitomo's Sunspot Drawings During 1835-1836 in Japan

    Fujiyama Masashi, Hayakawa Hisashi, Iju Tomoya, Kawai Toshiki, Toriumi Shin, Otsuji Kenichi, Kondo Katsuya, Watanabe Yusaku, Nozawa Satoshi, Imada Shinsuke

    SOLAR PHYSICS   Vol. 294 ( 4 )   2019.4

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    Publisher:Solar Physics  

    DOI: 10.1007/s11207-019-1429-3

    Web of Science

    Scopus

  41. The extreme space weather event in September 1909

    Hayakawa Hisashi, Ebihara Yusuke, Cliver Edward W., Hattori Kentaro, Toriumi Shin, Love Jeffrey J., Umemura Norio, Namekata Kosuke, Sakaue Takahito, Takahashi Takuya, Shibata Kazunari

    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY   Vol. 484 ( 3 ) page: 4083 - 4099   2019.4

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    Publisher:Monthly Notices of the Royal Astronomical Society  

    DOI: 10.1093/mnras/sty3196

    Web of Science

    Scopus

  42. Sunspot drawings by Japanese official astronomers in 1749-1750

    Hayakawa Hisashi, Iwahashi Kiyomi, Fujiyama Masashi, Kawai Toshiki, Toriumi Shin, Hotta Hideyuki, Iijima Haruhisa, Imada Shinsuke, Tamazawa Harufumi, Shibata Kazunari

    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN   Vol. 70 ( 4 )   2018.8

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    Publisher:Publications of the Astronomical Society of Japan  

    DOI: 10.1093/pasj/psy066

    Web of Science

    Scopus

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Books 1

  1. Extreme Solar Particle Storms The hostile Sun International journal

    ( Role: Contributor)

    IOP   2019.12 

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    Language:English Book type:Scholarly book

    DOI: https://doi.org/10.1088/2514-3433/ab404a

Presentations 11

  1. Extreme space weather events in the observational history: the Carrington event and others Invited International conference

    Hisashi Hayakawa, Yusuke Ebihara, & Kentaro Hattori

    Asia Oceania Geosciences Society 2021  2021.8.3 

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    Event date: 2021.8

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:virtual  

  2. 歴史文献による過去3000年間の激甚太陽嵐の調査と定量復元

    早川尚志

    『知の開拓者』コンソーシアム総会  2022.3.7 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Symposium, workshop panel (nominated)  

  3. 過去の観測記録から復元する1940年3月の激甚宇宙天気現象

    早川尚志

    日本天文学会 2022春  2022.3.2 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:広島大学  

  4. Historical observations of intensities and time series of the extreme space weather events in the 1940s International coauthorship International conference

    Hisashi Hayakawa, Alexei A. Pevtsov, Denny M. Oliveira, Seán P. Blake, Kentaro Hattori, Ankush T. Bhaskar, Nina Karachik, and Yusuke Ebihara

    SCOSTEP's 15th Quadrennial Solar-Terrestrial Physics Symposium  2022.2.25 

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    Event date: 2022.2

    Language:English   Presentation type:Oral presentation (general)  

    Country:India  

  5. Archival investigations of extreme space weather events with the historical documents International conference

    Hisashi Hayakawa

    ISSI 2021, Solar Extreme Events: Setting Up a Paradigm  2021.9.30 

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    Event date: 2021.9 - 2021.10

    Language:English   Presentation type:Oral presentation (invited, special)  

  6. オーストリアの修道院文献から復元するダルトン極小期の太陽活動

    Hisashi Hayakawa, Tomoya Iju, Shinsuke Imada

    日本天文学会 2021秋  2021.9.13 

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    Event date: 2021.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都産業大学  

  7. Analyses of the Extreme Solar and Geomagnetic Storms in March 1940 International coauthorship International conference

    Hisashi Hayakawa*, Denny M. Oliveira, Margaret A. Shea, Don F. Smart, Seán P. Blake, Kentaro Hattori, Ankush T. Bhaskar, Juan J. Curto, Daniel R. Franco, and Yusuke Ebihara

    Joint Scientific Assembly IAGA-IASPEI 2021  2021.8.23 

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    Event date: 2021.8

    Language:English   Presentation type:Oral presentation (general)  

    Venue:virtual  

  8. 過去1.8世紀の歴史的アナログ記録に基づく激甚磁気嵐の規模推定の事例研究 Invited

    早川尚志、海老原祐輔、服部健太郎

    地球電磁気・地球惑星圏学会  2020.11.4 

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    Language:Japanese   Presentation type:Oral presentation (invited, special)  

  9. The solar activity in the Dalton Minimum, as reconstructed from the Austrian monasterial documents

    Hayakawa, H., Iju, T., Imada, S.

    Astronomical Society of Japan  2021.9.13 

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    Language:Japanese   Presentation type:Oral presentation (general)  

  10. Extreme space weather events in the observational history: the Carrington event and others Invited

    Hayakawa, H., Ebihara, Y., Hattori, K.

    Asia Oceania Geosciences Society 2021  2021.8.3 

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    Language:English   Presentation type:Oral presentation (invited, special)  

  11. Analyses of the Extreme Solar and Geomagnetic Storms in March 1940 International coauthorship International conference

    Hayakawa, H., Oliveira, D. M., Shea, M. A., Smart, D. F., Blake, S. P., Hattori, K., Bhaskar, A. T., Curto, J. J., Franco, D. R., Ebihara, Y.

    IAGA-IASPEI Assembly 2021  2021.8.23 

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    Language:English   Presentation type:Oral presentation (general)  

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Research Project for Joint Research, Competitive Funding, etc. 2

  1. Feasibility researches on the quantitative environmental history: a case study for the crisis of the 17th-century and its comparison

    2020.9 - 2021.3

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\1500000

  2. アナログ観測記録・歴史文献に基づく過去の太陽活動と宇宙天気の復元

    2020.8 - 2021.3

    京都大学  生存圏科学 ミッション研究 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\560000

KAKENHI (Grants-in-Aid for Scientific Research) 3

  1. 同時代黒点観測の歴史的文書に基づくダルトン極小期復元の試験的検討

    Grant number:21K13957  2021.4 - 2024.3

    科学研究費助成事業  若手研究

    早川 尚志

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    Authorship:Principal investigator 

    Grant amount:\4550000 ( Direct Cost: \3500000 、 Indirect Cost:\1050000 )

    19世紀前半の太陽活動は例外的に静穏で、「ダルトン極小期」と呼称される。しかしこの頃の太陽活動の直接観測については、記録自体が歴史文献に記録され、その分析に太陽物理学のみならず歴史学・文献学の知見を要するため、必ずしも定量的復元が十全に行われているとは言い難い。そこで、本研究では、実際に当時の観測記録を複写、歴史学・文献学的に記述を解読し、現代太陽物理学の知見を適用して、当時の太陽活動を黒点数、黒点分布の試験的復元を行い、長期の地磁気変動と比較する。この時期のデータを過去410年の観測記録と比較し、ダルトン極小期の太陽活動の観測記録を現代科学観測の知見とどこまで定量的に比較できるか検証する。

  2. 多核種分析による完新世の極端太陽現象の頻度と規模解明

    Grant number:20H00173  2020.4 - 2021.3

    科学研究費助成事業  基盤研究(A)

    三宅 芙沙, 堀内 一穂, 宮原 ひろ子, 笹 公和, 箱崎 真隆, 前原 裕之, 木村 勝彦, 門叶 冬樹, 早川 尚志

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    Authorship:Coinvestigator(s) 

    樹木年輪の14Cや氷床コアの10Be、36Clといった宇宙線生成核種は、観測史上最大とされ
    る1956年のSEP(Solar Energetic Particle)イベントの数十倍という過去の超巨大SEPイ
    ベントの優れた代替データである。本研究は、主に年輪の14C分析から、完新世(
    過去1万2千年間)における最大のSEPイベントの同定と、超巨大SEPイベントの発生頻度及
    びその発生特性の解明を目的とする。我々の太陽における発生特性を、太陽型恒星の恒星
    フレアと比較することで、太陽型恒星における太陽の普遍性と特殊性を評価する。
    樹木年輪の炭素14や氷床コアのベリリウム10、塩素36といった宇宙線生成核種は、直接観測で見つかっている最大のSEP(Solar Energetic Particle)イベントの数十倍という過去の超巨大SEPイベントの優れた代替データである。これまでに我々の宇宙線生成核種の分析から、775年や994年などの超巨大SEPイベントの痕跡を発見した(Miyake et al. 2012, 2013)。これは、我々の太陽でスーパーフレアが発生した可能性を示すだけでなく、現代社会に甚大な影響を与え得る極端太陽現象が将来発生する可能性を示すものである。本研究は、宇宙線生成核種の分析から、完新世(過去1万2千年間)における最大のSEPイベントの同定と、超巨大SEPイベントの発生頻度及びその発生特性の解明を目的とする。
    今年度は、長期的な樹木年輪の炭素14分析を実施するために、樹木試料の手配(日本、フィンランド、カリフォルニア産の樹木サンプル)や、試料調製装置(木片試料からグラファイト試料の抽出)の性能チェック、さらに分析に必要な環境作りを行った。また、SEPイベントのエネルギースペクトルを評価する上で要となる塩素36の(南極ドームふじ氷床コア)分析を行った。さらに、トラバーチン堆積物のベリリウム10データに過去の大規模SEPイベントがみられるか調査する足掛かりとして、トラバーチン分析を行うための環境整備を行った。
    令和2年度が最終年度であるため、記入しない。
    令和2年度が最終年度であるため、記入しない。

  3. A preliminary study for magnitude estimates and quantitative comparisons of the extreme space weather events based on the early modern analog observational records

    Grant number:20K22367  2020.9 - 2022.3

    JSPS 

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    Authorship:Principal investigator  Grant type:Competitive

    Grant amount:\2860000 ( Direct Cost: \2200000 、 Indirect Cost:\660000 )

 

Teaching Experience (Off-campus) 3

  1. 人文学概論

    2021.1 Osaka University)

  2. 比較文明論演習A

    2020.4 - 2020.9 Daito Bunka University)

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    Level:Undergraduate (specialized) 

  3. 交流史研究A

    2020.4 - 2020.9 Daito Bunka University)

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    Level:Undergraduate (specialized) 

 

Media Coverage 1

  1. BBC Sky at Night, Stars: A Matter of Life and Death TV or radio program

    BBC  BBC  Interview; https://www.bbc.co.uk/programmes/m000kxjy  2020.7