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A Long-duration Superflare on the K Giant HD 251108

Many giant stars are magnetically active, which causes rotational variability, chromospheric emission lines, and X-ray emission. Large outbursts in these emission features can set limits on the magnetic field strength and thus constrain the mechanism of the underlying dynamo. HD 251108 is a Li-rich...

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Autori principali: Hans Moritz Günther, Dheeraj Pasham, Alexander Binks, Stefan Czesla, Teruaki Enoto, Michael Fausnaugh, Franz-Josef Hambsch, Shun Inoue, Hiroyuki Maehara, Yuta Notsu, Jan Robrade, J. H. M. M. Schmitt, P. C. Schneider
Natura: Artigo
Lingua:Inglês
Pubblicazione: IOP Publishing 2024-01-01
Serie:The Astrophysical Journal
Soggetti:
Stellar x-ray flares
K giant stars
Red giant clump
Stellar flares
Stellar coronae
Accesso online:https://doi.org/10.3847/1538-4357/ad8b2c
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