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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 10.

Temporal evolution of pre-flare-subtracted spectra during the superflare on 2022 April 16 (E2). To improve the signal-to-noise ratio for fitting, the data have been binned into 5-minute intervals. The magenta and green lines represent the results of fitting with a two-component Gaussian, and the dashed lines correspond to the sum of the two Gaussians. Please see Figure 7 for the other spectra of flare E2 without significant blueshifted components.

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