Two-horn quiescent prominence observed in Hα and Mg II h&k lines with THEMIS and IRIS Krzysztof Barczynski, Brigitte Schmieder, Bernard Gelly, Aaron W. Peat and Nicolas Labrosse A&A, 680 (2023) A63 Published online: 12 December 2023 DOI: 10.1051/0004-6361/202345970