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

  • Authors: Hisashi Hayakawa, Paulo Ribeiro, José M. Vaquero, María Cruz Gallego, Delores J. Knipp, Florian Mekhaldi, Ankush Bhaskar, Denny M. Oliveira, Yuta Notsu, Víctor M. S. Carrasco, Ana Caccavari, Bhaskara Veenadhari, Shyamoli Mukherjee, and Yusuke Ebihara

2020 The Astrophysical Journal Letters 897 L10.

  • Provider: AAS Journals

Caption: Figure 3.

Original Colaba magnetogram on 1903 October 31–November 1, adopted from the WDC for Geomagnetism at Kyoto (http://wdc.kugi.kyoto-u.ac.jp/film/index/cla_1903_normal-j.html). Each bar of baseline shows a duration of 2 hr after the record start at 10 LT (Moos 1910, p. 251). We assumed the continuity of baseline to reconstruct the magnetogram. (Courtesy of WDC for Geomagnetism at Kyoto and Colaba Observatory (current under administration of the IIG)).

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