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Multiwavelength Campaign Observations of a Young Solar-type Star, EK Draconis. I. Discovery of Prominence Eruptions Associated with Superflares

  • Authors: Kosuke Namekata, Vladimir S. Airapetian, Pascal Petit, Hiroyuki Maehara, Kai Ikuta, Shun Inoue, Yuta Notsu, Rishi R. Paudel, Zaven Arzoumanian, Antoaneta A. Avramova-Boncheva, Keith Gendreau, Sandra V. Jeffers, Stephen Marsden, Julien Morin, Coralie Neiner, Aline A. Vidotto, Kazunari Shibata

Kosuke Namekata et al 2024 The Astrophysical Journal 961 .

  • Provider: AAS Journals

Caption: Figure 4.

The same as Figure 3, but for the superflare observed on 2022 April 16 (E2). In panel (a), the Hα EW is calculated within a range of 6562.8 ± 10 Å. Panel (d) displays Hα ΔEW, WL, and soft X-ray, each normalized by their respective peak values. The basal level of Hα ΔEW is a median value of −45 to −15 minutes, while the basal level of the soft X-ray is the mean value of block 2.

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