astro-ph.SR astro-ph.HE
A long-duration superflare on the K giant HD 251108
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