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

Abstract

The Carrington storm (September 1/2, 1859) is one of the largest magnetic storms ever observed and it has caused global auroral displays in low-latitude areas, together with a series of multiple magnetic storms during August 28 and September 4, 1859. In this study, we revisit contemporary auroral observation records to extract information on their elevation angle, color, and direction to investigate this stormy interval in detail. We first examine their equatorward boundary of "auroral emission with multiple colors" based on descriptions of elevation angle and color. We find that their locations were 36.5 deg ILAT on August 28/29 and 32.7 deg ILAT on September 1/2, suggesting that trapped electrons moved to, at least, L~1.55 and L~1.41, respectively. The equatorward boundary of "purely red emission" was likely located at 30.8 deg ILAT on September 1/2. If "purely red emission" was a stable auroral red arc, it would suggest that trapped protons moved to, at least, L~1.36. This reconstruction with observed auroral emission regions provides conservative estimations of magnetic storm intensities. We compare the auroral records with magnetic observations. We confirm that multiple magnetic storms occurred during this stormy interval, and that the equatorward expansion of the auroral oval is consistent with the timing of magnetic disturbances. It is possible that the August 28/29 interplanetary coronal mass ejections (ICMEs) cleared out the interplanetary medium, making the ICMEs for the Carrington storm on September 1/2 more geoeffective.

arXiv commentMain Text 28 pages, References 11 pages, and Appendix 3 pages with 5 figures. The data table will be shown in the record version. This paper was accepted for publication in the Astrophysical Journal on 2018 September 26

References in corpus (19)

• Revisiting the Sunspot Number
• The new Sunspot Number: assembling all corrections
• Observations of an extreme storm in interplanetary space caused by successive coronal mass ejections
• Can Superflares Occur on Our Sun?
• Reconstruction of the Sunspot Group Number: the Backbone Method
• Statistical properties of superflares on solar-type stars based on 1-min cadence data
• Occurrence of extreme solar particle events: Assessment from historical proxy data
• Occurrence rate of extreme magnetic storms
• Long-Lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents
• The Great Space Weather Event during February 1872 Recorded in East Asia
• East Asian Observations of Low Latitude Aurora during the Carrington Magnetic Storm
• The earliest drawings of datable auroras and a two-tail comet from the Syriac Chronicle of Zūqnīn
• Historical Auroras in the 990s: Evidence for Great Magnetic Storms
• A Great Space Weather Event in February 1730
• Sheath-Accumulating Propagation of Interplanetary Coronal Mass Ejection
• The Grand Aurorae Borealis Seen in Colombia in 1859
• Searching for Carrington-like events and their signatures and triggers
• Earliest Datable Records of Aurora-like Phenomena in the Astronomical Diaries from Babylonia
• Sporadic Aurora near Geomagnetic Equator: In the Philippines, on 27 October 1856

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• Temporal Variations of the Three Geomagnetic Field Components at Colaba Observatory around the Carrington Storm in 1859
• Do the Chinese Astronomical Records Dated AD 776 January 12/13 Describe an Auroral Display or a Lunar Halo? A Critical Re-examination
• Occurrence of Great Magnetic Storms on 6-8 March 1582
• MHD study of planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications
• South American auroral reports during the Carrington storm
• Sunspot Observations by Hisako Koyama: 1945-1996
• Revisiting Kunitomo's Sunspot Drawings during 1835-1836 in Japan
• The Extreme Space Weather Event in February/March 1941
• Intense geomagnetic storm during Maunder minimum possibly by a quiescent filament eruption
• Candidate Auroral Observations during the Major Solar-Terrestrial Storm in May 1680: Implication for Space Weather Events during the Maunder Minimum
• A modern reconstruction of Carrington's observations (1853-1861)
• The Celestial Sign in the Anglo-Saxon Chronicle in the 770s: Insights on Contemporary Solar Activity
• Eric Strach: four decades of detailed synoptic solar observations (1969-2008)
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