61 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyoto UniversityJP7 papers
- The University of OsakaJP5 papers
- The University of TokyoJP3 papers
- Tohoku UniversityJP3 papers
- Japan Society for the Promotion of ScienceJP2 papers
- Musashino Art UniversityJP2 papers
- National Astronomical Observatory of JapanJP2 papers
- National Institute of Polar ResearchJP2 papers
- Research Institute for Sustainable Humanosphere2 papers
- Rutherford Appleton LaboratoryGB2 papers
- The Graduate University for Advanced Studies, SOKENDAIJP2 papers
- Chiba Keizai UniversityJP1 paper
3 papers · 2 filters
Iwahashi Zenbei's Sunspot Drawings in 1793 in Japan
Hisashi Hayakawa, Kiyomi Iwahashi, Harufumi Tamazawa +2
Three Japanese sunspot drawings associated with Iwahashi Zenbei (1756-1811) are shown here from contemporary manuscripts and woodprint documents with the relevant texts. We reveale…
Long-Lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents
Hisashi Hayakawa, Kiyomi Iwahashi, Yusuke Ebihara +8
Dim red aurora at low magnetic latitudes is a visual and recognized manifestation of geomagnetic storms. The great low-latitude auroral displays seen throughout East Asia on 16-18…
Records of Auroral Candidates and Sunspots in Rikkokushi, Chronicles of Ancient Japan from Early 7th Century to 887
Hisashi Hayakawa, Kiyomi Iwahashi, Harufumi Tamazawa +5
In this article, we present the results of the surveys on sunspots and auroral candidates in Rikkokushi, Japanese Official Histories from the early 7th century to 887 to review the…