Abstract
We present a study of two horseshoe-shaped impulsive Hα flares that occurred in active region NOAA 7912. Soft X-ray images show that the main body of the flare occupied a small part of the Hα horseshoe structure, implying a confined energy release location. We present some observational evidence, such as sunspot proper motion and hard X-ray structures, that the flares are due to an emerging flux model process.
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© 1998 Springer Science+Business Media Dordrecht
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Suematsu, Y., Nishino, Y., Yan, Y., Sato, J. (1998). Horseshoe-Shaped Hα Flares on 13 Oct. 1995 and an Emerging Flux Model of Flares. In: Watanabe, T., Kosugi, T., Sterling, A.C. (eds) Observational Plasma Astrophysics: Five Years of Yohkoh and Beyond. Astrophysics and Space Science Library, vol 229. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5220-4_35
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DOI: https://doi.org/10.1007/978-94-011-5220-4_35
Publisher Name: Springer, Dordrecht
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