First-authored, refereed papers of Hisashi Hayakawa, ordered by citations

A list of first-authored, refereed publications of Hisashi Hayakawa, derived from the SAO/NASA Astrophysics Data System (ADS) and ordered by the numbers of citations. Publications above the horizontal line count towards the h-index.

Orcid ID: 0000-0001-5370-3365

74	Temporal and Spatial Evolutions of a Large Sunspot Group and Great Auroral Storms Around the Carrington Event in 1859 Hayakawa, Hisashi, Ebihara, Yusuke, Willis, David M., Toriumi, Shin, Iju, Tomoya, Hattori, Kentaro, Wild, Matthew N., Oliveira, Denny M., Ermolli, Ilaria, Ribeiro, José R., Correia, Ana P., Ribeiro, Ana I. & Knipp, Delores J., 2019, Space Weather, 17, 1553
53	Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents Hayakawa, Hisashi, Iwahashi, Kiyomi, Ebihara, Yusuke, Tamazawa, Harufumi, Shibata, Kazunari, Knipp, Delores J., Kawamura, Akito D., Hattori, Kentaro, Mase, Kumiko, Nakanishi, Ichiro & Isobe, Hiroaki, 2017, ApJ, 850, L31
52	Low-latitude Aurorae during the Extreme Space Weather Events in 1859 Hayakawa, Hisashi, Ebihara, Yusuke, Hand, David P., Hayakawa, Satoshi, Kumar, Sandeep, Mukherjee, Shyamoli & Veenadhari, B., 2018, ApJ, 869, 57
47	The Great Space Weather Event during 1872 February Recorded in East Asia Hayakawa, Hisashi, Ebihara, Yusuke, Willis, David M., Hattori, Kentaro, Giunta, Alessandra S., Wild, Matthew N., Hayakawa, Satoshi, Toriumi, Shin, Mitsuma, Yasuyuki, Macdonald, Lee T., Shibata, Kazunari & Silverman, Sam M., 2018, ApJ, 862, 15
45	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, 2019, MNRAS, 484, 4083
42	The Extreme Space Weather Event in 1903 October/November: An Outburst from the Quiet Sun Hayakawa, Hisashi, Ribeiro, Paulo, Vaquero, José M., Gallego, María Cruz, Knipp, Delores J., Mekhaldi, Florian, Bhaskar, Ankush, Oliveira, Denny M., Notsu, Yuta, Carrasco, Víctor M. S., Caccavari, Ana, Veenadhari, Bhaskara, Mukherjee, Shyamoli & Ebihara, Yusuke, 2020, ApJ, 897, L10
41	Thaddäus Derfflinger's Sunspot Observations during 1802-1824: A Primary Reference to Understand the Dalton Minimum Hayakawa, Hisashi, Besser, Bruno P., Iju, Tomoya, Arlt, Rainer, Uneme, Shoma, Imada, Shinsuke, Bourdin, Philippe-A. & Kraml, Amand, 2020, ApJ, 890, 98
29	Graphical evidence for the solar coronal structure during the Maunder minimum: comparative study of the total eclipse drawings in 1706 and 1715 Hayakawa, Hisashi, Lockwood, Mike, Owens, Matthew J., Sôma, Mitsuru, Besser, Bruno P. & van Driel-Gesztelyi, Lidia, 2021, Journal of Space Weather and Space Climate, 11, 1
26	Sunspot Observations at the Eimmart Observatory and in Its Neighborhood during the Late Maunder Minimum (1681-1718) Hayakawa, Hisashi, Kuroyanagi, Chiaki, Carrasco, Víctor M. S., Uneme, Shoma, Besser, Bruno P., Sôma, Mitsuru & Imada, Shinsuke, 2021, ApJ, 909, 166
24	Temporal Variations of the Three Geomagnetic Field Components at Colaba Observatory around the Carrington Storm in 1859 Hayakawa, Hisashi, Nevanlinna, Heikki, Blake, Séan P., Ebihara, Yusuke, Bhaskar, Ankush T. & Miyoshi, Yoshizumi, 2022, ApJ, 928, 32
22	The Solar Corona during the Total Eclipse on 1806 June 16: Graphical Evidence of the Coronal Structure during the Dalton Minimum Hayakawa, Hisashi, Owens, Mathew J., Lockwood, Michael & Sôma, Mitsuru, 2020, ApJ, 900, 114
21	Intensity and time series of extreme solar-terrestrial storm in 1946 March Hayakawa, Hisashi, Ebihara, Yusuke, Pevtsov, Alexei A., Bhaskar, Ankush, Karachik, Nina & Oliveira, Denny M., 2020, MNRAS, 497, 5507
20	The Earliest Candidates of Auroral Observations in Assyrian Astrological Reports: Insights on Solar Activity around 660 BCE Hayakawa, Hisashi, Mitsuma, Yasuyuki, Ebihara, Yusuke & Miyake, Fusa, 2019, ApJ, 884, L18
20	Iwahashi Zenbei's Sunspot Drawings in 1793 in Japan Hayakawa, Hisashi, Iwahashi, Kiyomi, Tamazawa, Harufumi, Toriumi, Shin & Shibata, Kazunari, 2018, Solar Physics, 293, 8
20	South American auroral reports during the Carrington storm Hayakawa, Hisashi, Ribeiro, José R., Ebihara, Yusuke, Correia, Ana P. & Sôma, Mitsuru, 2020, Earth, Planets and Space, 72, 122
18	The Solar and Geomagnetic Storms in 2024 May: A Flash Data Report Hayakawa, Hisashi, Ebihara, Yusuke, Mishev, Alexander, Koldobskiy, Sergey, Kusano, Kanya, Bechet, Sabrina, Yashiro, Seiji, Iwai, Kazumasa, Shinbori, Atsuki, Mursula, Kalevi, Miyake, Fusa, Shiota, Daikou, Silveira, Marcos V. D., Stuart, Robert, Oliveira, Denny M., Akiyama, Sachiko, Ohnishi, Kouji, Ledvina, Vincent & Miyoshi, Yoshizumi, 2025, ApJ, 979, 49
16	Reanalyses of the sunspot observations of Fogelius and Siverus: two 'long-term' observers during the Maunder minimum Hayakawa, Hisashi, Iju, Tomoya, Uneme, Shoma, Besser, Bruno P., Kosaka, Shunsuke & Imada, Shinsuke, 2021, MNRAS, 506, 650
16	Magnitude Estimates for the Carrington Flare in 1859 September: As Seen from the Original Records Hayakawa, Hisashi, Bechet, Sabrina, Clette, Frédéric, Hudson, Hugh S., Maehara, Hiroyuki, Namekata, Kosuke & Notsu, Yuta, 2023, ApJ, 954, L3
14	Sunspot observations by Hisako Koyama: 1945-1996 Hayakawa, Hisashi, Clette, Frédéric, Horaguchi, Toshihiro, Iju, Tomoya, Knipp, Delores J., Liu, Huixin & Nakajima, Takashi, 2020, MNRAS, 492, 4513
14	Stephan Prantner's Sunspot Observations during the Dalton Minimum Hayakawa, Hisashi, Uneme, Shoma, Besser, Bruno P., Iju, Tomoya & Imada, Shinsuke, 2021, ApJ, 919, 1
14	The extreme solar and geomagnetic storms on 1940 March 20-25 Hayakawa, Hisashi, Oliveira, Denny M., Shea, Margaret A., Smart, Don F., Blake, Seán P., Hattori, Kentaro, Bhaskar, Ankush T., Curto, Juan J., Franco, Daniel R. & Ebihara, Yusuke, 2022, MNRAS, 517, 1709
14	Daniel Mögling's Sunspot Observations in 1626-1629: A Manuscript Reference for the Solar Activity before the Maunder Minimum Hayakawa, Hisashi, Iju, Tomoya, Murata, Koji & Besser, Bruno P., 2021, ApJ, 909, 194
12	The Intensity and Evolution of the Extreme Solar and Geomagnetic Storms in 1938 January Hayakawa, Hisashi, Hattori, Kentaro, Pevtsov, Alexei A., Ebihara, Yusuke, Shea, Margaret A., McCracken, Ken G., Daglis, Ioannis A., Bhaskar, Ankush T., Ribeiro, Paulo & Knipp, Delores J., 2021, ApJ, 909, 197
11	The Celestial Sign in the Anglo-Saxon Chronicle in the 770s: Insights on Contemporary Solar Activity Hayakawa, Hisashi, Stephenson, F. Richard, Uchikawa, Yuta, Ebihara, Yusuke, Scott, Christopher J., Wild, Matthew N., Wilkinson, Julia & Willis, David M., 2019, Solar Physics, 294, 42
10	The Extreme Space Weather Event in 1941 February/March Hayakawa, Hisashi, Blake, Sean P., Bhaskar, Ankush, Hattori, Kentaro, Oliveira, Denny M. & Ebihara, Yusuke, 2021, ApJ, 908, 209
10	Johann Christoph Müller's Sunspot Observations in 1719 - 1720: Snapshots of the Immediate Aftermath of the Maunder Minimum Hayakawa, Hisashi, Iju, Tomoya, Kuroyanagi, Chiaki, Carrasco, Víctor M. S., Besser, Bruno P., Uneme, Shoma & Imada, Shinsuke, 2021, Solar Physics, 296, 154
9	An Overview of Sunspot Observations in 1727-1748 Hayakawa, Hisashi, Hattori, Kentaro, Sôma, Mitsuru, Iju, Tomoya, Besser, Bruno P. & Kosaka, Shunsuke, 2022, ApJ, 941, 151
8	The Extreme Space Weather Event of 1872 February: Sunspots, Magnetic Disturbance, and Auroral Displays Hayakawa, Hisashi, Cliver, Edward W., Clette, Frédéric, Ebihara, Yusuke, Toriumi, Shin, Ermolli, Ilaria, Chatzistergos, Theodosios, Hattori, Kentaro, Knipp, Delores J., Blake, Séan P., Cauzzi, Gianna, Reardon, Kevin, Bourdin, Philippe-A., Just, Dorothea, Vokhmyanin, Mikhail, Matsumoto, Keitaro, Miyoshi, Yoshizumi, Ribeiro, José R., Correia, Ana P., Willis, David M., Wild, Matthew N. & Silverman, Sam M., 2023, ApJ, 959, 23
8	Candidate Auroral Observations Indicating a Major Solar-Terrestrial Storm in 1680: Implication for Space Weather Events during the Maunder Minimum Hayakawa, Hisashi, Schlegel, Kristian, Besser, Bruno P. & Ebihara, Yusuke, 2021, ApJ, 909, 29
8	Unaided-eye Sunspot Observations in 1769 November: A Comparison of Graphical Records in the East and the West Hayakawa, Hisashi, Willis, David M., Hattori, Kentaro, Notsu, Yuta, Wild, Matthew N. & Karoff, Christoffer, 2019, Solar Physics, 294, 95
6	A review for Japanese auroral records on the three extreme space weather events around the International Geophysical Year (1957-1958) Hayakawa, Hisashi, Ebihara, Yusuke & Hata, Hidetoshi, 2023, Geoscience Data Journal, 10, 142
5	An Overview of Sunspot Observations in the Early Maunder Minimum: 1645-1659 Hayakawa, Hisashi, Carrasco, Víctor M. S., Aparicio, Alejandro J. P., Villalba Álvarez, Joaquín & Vaquero, José M., 2024, MNRAS, 528, 6280
4	A Transit of Venus Possibly Misinterpreted as an Unaided-Eye Sunspot Observation in China on 9 December 1874 Hayakawa, Hisashi, Sôma, Mitsuru, Tanikawa, Kiyotaka, Willis, David M., Wild, Matthew N., Macdonald, Lee T., Imada, Shinsuke, Hattori, Kentaro & Richard Stephenson, F., 2019, Solar Physics, 294, 119
3	Three case reports on the cometary plasma tail in the historical documents Hayakawa, Hisashi, Fujii, Yuri I., Murata, Koji, Mitsuma, Yasuyuki, Cheng, Yongchao, Nogami, Nagatoshi, Ichikawa, Kohei, Sano, Hidetoshi, Tsumura, Kohji, Kawamoto, Yukiko & Nishino, Masaki N., 2021, Journal of Space Weather and Space Climate, 11, 21
3	The Variable Earth's Rotation in the 4th-7th Centuries: New ΔT Constraints from Byzantine Eclipse Records Hayakawa, Hisashi, Murata, Koji & Sôma, Mitsuru, 2022, Publications of the Astronomical Society of the Pacific, 134, 094401
3	Analyses of Equatorward Auroral Extensions during the Extreme Geomagnetic Storm on 15 July 1959 Hayakawa, Hisashi, Ebihara, Yusuke & Pevtsov, Alexei A., 2024, MNRAS, 527, 7298
2	Analyses of historical solar eclipse records in Hokkaido Island in the 18-19th centuries Hayakawa, Hisashi, Sôma, Mitsuru & Daigo, Ryuma, 2022, Publications of the Astronomical Society of Japan, 74, 1275
2	Analyses of Johannes Kepler's Sunspot Drawings in 1607: A Revised Scenario for the Solar Cycles in the Early 17th Century Hayakawa, Hisashi, Murata, Koji, Teague, E. Thomas H., Bechet, Sabrina & Sôma, Mitsuru, 2024, ApJ, 970, L31
2	Sunspot observations at Kawaguchi Science Museum: 1972 - 2013 Hayakawa, Hisashi, Suzuki, Daisuke, Mathieu, Sophie, Lefèvre, Laure, Takuma, Hitoshi & Hiei, Eijiro, 2023, Geoscience Data Journal, 10, 87
1	Analyses of a datable solar eclipse record in Maya Classic period monumental inscriptions Hayakawa, Hisashi, Sôma, Misturu & Kinsman, J. Hutch, 2021, Publications of the Astronomical Society of Japan, 73, L31
1	Katsue Misawa's sunspot observations in 1921-1934: a primary reference for the Wolfer-Brunner transition Hayakawa, Hisashi, Suyama, Toru, Clette, Frédéric, Bhattacharya, Shreya, Lefèvre, Laure & Ohnishi, Kouji, 2024, MNRAS, 532, 4289
0	Karl von Lindener's sunspot observations during 1800-1827: Another long-term dataset for the Dalton Minimum Hayakawa, Hisashi, Arlt, Rainer, Iju, Tomoya & Besser, Bruno P., 2023, Journal of Space Weather and Space Climate, 13, 33
0	Analyses for graphical records for a total solar eclipse in 1230 May: a possible reference for the 'Medieval Grand Maximum' Hayakawa, Hisashi, Murata, Koji, Owens, Mathew J. & Lockwood, Mike, 2024, MNRAS, 530, 3150
0	Revision of the strongest solar energetic particle event of 23 February 1956 (GLE #5) based on the rediscovered original records Hayakawa, Hisashi, Koldobskiy, Sergey, Mishev, Alexander, Poluianov, Stepan, Gil, Agnieszka, Usoskina, Inna & Usoskin, Ilya, 2024, A&A, 684, A46