Detection of Na in the atmosphere of the hot Jupiter HAT-P-55b Huiyi Kang, Guo Chen, Chengzi Jiang, Enric Pallé, Felipe Murgas, Hannu Parviainen, Yuehua Ma, Akihiko Fukui and Norio Narita A&A, 687 (2024) A9 Published online: 25 June 2024 DOI: 10.1051/0004-6361/202449915