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
Showing 2018Show all
2 papers · 1 filter
astro-ph.SR2018★ 32 cited
A Great Space Weather Event in February 1730
Hisashi Hayakawa, Yusuke Ebihara, José M. Vaquero +9
Aims. Historical records provide evidence of extreme magnetic storms with equatorward auroral extensions before the epoch of systematic magnetic observations. One significant magne…
physics.hist-ph2018★ 13 cited
Sunspot Drawings by Japanese Official Astronomers in 1749-1750
Hisashi Hayakawa, Kiyomi Iwahashi, Masashi Fujiyama +7
Sunspot observations with telescopes in 18th century were carried out in Japan as well. One of these sunspot observations is recorded in an account called Sansaizusetsu narabini Ka…