50 citations as recorded by crossref.

1. Spatial structures of blue low-latitude aurora observed from Japan during the extreme geomagnetic storm of May 2024 S. Nanjo & K. Shiokawa 10.1186/s40623-024-02090-9
2. Allowance for the solar-magnetospheric connections in a problem of predicting the critical frequency of the subauroral ionosphere O. Barkhatova et al. 10.1007/s11141-009-9117-z
3. Historical Auroras in the 990s: Evidence of Great Magnetic Storms H. Hayakawa et al. 10.1007/s11207-016-1039-2
4. Aurora Sightings Observed in Chinese History Caused by CIRs or Great-storm CMEs G. Wang et al. 10.3847/1538-4357/abd0fe
5. Sporadic auroras near the geomagnetic equator: in the Philippines, on 27 October 1856 H. Hayakawa et al. 10.5194/angeo-36-1153-2018
6. Extreme‐Event Magnetic Storm Probabilities Derived From Rank Statistics of Historical Dst Intensities for Solar Cycles 14–24 J. Love 10.1029/2020SW002579
7. Auroral oval reconstruction for historical geomagnetic storms in the 18th and 19th century D. Wagner et al. 10.1002/asna.20220078
8. The Intensity and Evolution of the Extreme Solar and Geomagnetic Storms in 1938 January H. Hayakawa et al. 10.3847/1538-4357/abc427
9. A possible case of sporadic aurora observed at Rio de Janeiro D. Oliveira et al. 10.1186/s40623-020-01208-z
10. Generation of 100‐year geomagnetically induced current scenarios A. Pulkkinen et al. 10.1029/2011SW000750
11. Observed Auroral Ovals Secular Variation Inferred from Auroral Boundary Data B. Zossi et al. 10.3390/geosciences11080351
12. The extreme solar and geomagnetic storms on 1940 March 20–25 H. Hayakawa et al. 10.1093/mnras/stab3615
13. A great space weather event in February 1730 H. Hayakawa et al. 10.1051/0004-6361/201832735
14. Auroral zone over the last 3000 years R. Kataoka & S. Nakano 10.1051/swsc/2021030
15. Spatial scale of geomagnetic Pc5/Pi3 pulsations as a factor of their efficiency in generation of geomagnetically induced currents N. Yagova et al. 10.1186/s40623-021-01407-2
16. Bayesian approach for auroral oval reconstruction from ground-based observations D. Wagner et al. 10.1016/j.jastp.2022.105824
17. Records of auroral candidates and sunspots in Rikkokushi, chronicles of ancient Japan from early 7th century to 887 H. Hayakawa et al. 10.1093/pasj/psx087
18. The Extreme Space Weather Event of 1872 February: Sunspots, Magnetic Disturbance, and Auroral Displays H. Hayakawa et al. 10.3847/1538-4357/acc6cc
19. East Asian observations of low-latitude aurora during the Carrington magnetic storm H. Hayakawa et al. 10.1093/pasj/psw097
20. Extreme solar events E. Cliver et al. 10.1007/s41116-022-00033-8
21. Comparison of the aurora of September 1/2, 1859 with other great auroras S. Silverman 10.1016/j.asr.2005.03.157
22. Time Domain Simulation of Geomagnetically Induced Current (GIC) Flowing in 500‐kV Power Grid in Japan Including a Three‐Dimensional Ground Inhomogeneity S. Nakamura et al. 10.1029/2018SW002004
23. Low-latitude Aurorae during the Extreme Space Weather Events in 1859 H. Hayakawa et al. 10.3847/1538-4357/aae47c
24. Auroral Oval Reconstruction for Historical Geomagnetic Storms in the 18th and 19th Centuryp, Li { White-Space: Pre-Wrap; } D. Wagner et al. 10.2139/ssrn.4051362
25. The extreme space weather events in October 1788 K. Hattori et al. 10.1093/pasj/psab079
26. The Extreme Space Weather Event in 1941 February/March H. Hayakawa et al. 10.3847/1538-4357/abb772
27. The earliest drawings of datable auroras and a two-tail comet from the Syriac Chronicle of Zūqnīn H. Hayakawa et al. 10.1093/pasj/psw128
28. Do the Chinese Astronomical Records Dated AD 776 January 12/13 Describe an Auroral Display or a Lunar Halo? A Critical Re-examination F. Stephenson et al. 10.1007/s11207-019-1425-7
29. Features of propagation of HF signals on mid-latitude paths under conditions of geomagnetic disturbances V. Uryadov et al. 10.1007/s11141-005-0035-4
30. Inclined Zenith Aurora over Kyoto on 17 September 1770: Graphical Evidence of Extreme Magnetic Storm R. Kataoka & K. Iwahashi 10.1002/2017SW001690
31. Dynamics of the auroral oval during geomagnetic disturbances observed by oblique sounding of the ionosphere in the Eurasian longitudinal sector V. Uryadov 10.1029/2004GI000078
32. The Solar and Geomagnetic Storms in 2024 May: A Flash Data Report H. Hayakawa et al. 10.3847/1538-4357/ad9335
33. Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents H. Hayakawa et al. 10.3847/2041-8213/aa9661
34. Challenges of Using Historical Aurora Observations for the Reconstruction of Solar Activity before the 19th Century, Especially during and near the Maunder Minimum M. Stangl & U. Foelsche 10.3390/atmos15080941
35. Candidate Auroral Observations Indicating a Major Solar–Terrestrial Storm in 1680: Implication for Space Weather Events during the Maunder Minimum H. Hayakawa et al. 10.3847/1538-4357/abb3c2
36. The Great Space Weather Event during 1872 February Recorded in East Asia H. Hayakawa et al. 10.3847/1538-4357/aaca40
37. Intense Geomagnetic Storm during Maunder Minimum Possibly by a Quiescent Filament Eruption H. Isobe et al. 10.3847/1538-4357/ab107e
38. An Analysis of Trouvelot's Auroral Drawing on 1/2 March 1872: Plausible Evidence for Recurrent Geomagnetic Storms A. Bhaskar et al. 10.1029/2020JA028227
39. Temporal and Spatial Evolutions of a Large Sunspot Group and Great Auroral Storms Around the Carrington Event in 1859 H. Hayakawa et al. 10.1029/2019SW002269
40. Analyses of Equatorward Auroral Extensions during the Extreme Geomagnetic Storm on 15 July 1959 H. Hayakawa et al. 10.1093/mnras/stad3556
41. Estimating Maximum Extent of Auroral Equatorward Boundary Using Historical and Simulated Surface Magnetic Field Data S. Blake et al. 10.1029/2020JA028284
42. A candidate auroral report in the Bamboo Annals, indicating a possible extreme space weather event in the early 10th century BCE M. van der Sluijs & H. Hayakawa 10.1016/j.asr.2022.01.010
43. Occurrence of great magnetic storms on 6–8 March 1582 K. Hattori et al. 10.1093/mnras/stz1401
44. Mapping a Magnetic Superstorm: March 1989 Geoelectric Hazards and Impacts on United States Power Systems J. Love et al. 10.1029/2021SW003030
45. E Layer Dominated Ionosphere Occurrences as a Function of Geophysical and Space Weather Conditions S. Kamal et al. 10.3390/rs12244109
46. Extreme geomagnetically induced currents R. Kataoka & C. Ngwira 10.1186/s40645-016-0101-x
47. Low-latitude auroras: the magnetic storm of 14–15 May 1921 S. Silverman & E. Cliver 10.1016/S1364-6826(00)00174-7
48. Swarm field-aligned currents during a severe magnetic storm of September 2017 R. Lukianova 10.5194/angeo-38-191-2020
49. Possible Cause of Extremely Bright Aurora Witnessed in East Asia on 17 September 1770 Y. Ebihara et al. 10.1002/2017SW001693
50. Comparison of the open‐closed separatrix in a global magnetospheric simulation with observations: The role of the ring current I. Rae et al. 10.1029/2009JA015068