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List of works by Hisashi Hayakawa

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

scientific article published in 2022

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

scientific article published in 2020

Analyses of Equatorward Auroral Extensions during the Extreme Geomagnetic Storm on 15 July 1959

scholarly article published on 17 November 2023

Do the Chinese Astronomical Records Dated AD 776 January 12/13 Describe an Auroral Display or a Lunar Halo? A Critical Re-examination

article

East Asian observations of low-latitude aurora during the Carrington magnetic storm

article

Graphical evidence for the solar coronal structure during the Maunder minimum: comparative study of the total eclipse drawings in 1706 and 1715

scientific article published in 2021

Inference of magnetic field during the Dalton minimum: Case study with recorded sunspot areas

scientific article published in 2022

Intensity and time series of extreme solar-terrestrial storm in 1946 March

scientific article published on 2 June 2020

Lifetimes and Emergence/Decay Rates of Star Spots on Solar-type Stars Estimated by Kepler Data in Comparison with Those of Sunspots

article

Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents ⬇️

scientific article

Low-latitude Aurorae during the Extreme Space Weather Events in 1859

scientific article published in the Astrophysical Journal

On the intensity of the magnetic superstorm of September 1909

scholarly article by Jeffrey J. Love et al published 9 December 2018 in Space Weather

Recalibration of the Sunspot-Number: Status Report

scientific article published in March 2023

Rudolf Wolf to Alfred Wolfer: The Transfer of the Reference Observer in the International Sunspot Number Series (1876–1893)

scientific article published in April 2024

Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3b

scholarly article published in April 2022

Sunspot observations by Hisako Koyama: 1945–1996 ⬇️

scholarly article

The Celestial Sign in the Anglo-Saxon Chronicle in the 770s: Insights on Contemporary Solar Activity

article published in 2019

The Extreme Solar and Geomagnetic Storms on 20-25 March 1940

scientific article published in 2021

The Extreme Space Weather Event in 1903 October/November: An Outburst from the Quiet Sun

scientific article published in 2020

The Extreme Space Weather Event in 1941 February/March

scientific article published in 2021

The Extreme Space Weather Event of 1872 February: Sunspots, Magnetic Disturbance, and Auroral Displays

scientific article published in December 2023

The Great Space Weather Event during 1872 February Recorded in East Asia

scholarly article

The Intensity and Evolution of the Extreme Solar and Geomagnetic Storms in 1938 January

scientific article published in 2021

The Variable Earth’s Rotation in the 4th–7th Centuries: New ΔT Constraints from Byzantine Eclipse Records

scientific article published in 2022

The extreme space weather event in September 1909

scientific article

The extreme space weather events in October 1788

scientific article published in 2021

Timelines as a tool for learning about space weather storms

scientific article published in 2021

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