Naked emergence of an anti-Hale active region - I. Overall evolution and magnetic properties Jincheng Wang, Xiaoli Yan, Defang Kong, Zhike Xue, Liheng Yang, Qiaoling Li, Yan Zhang and Hao Li A&A, 652 (2021) A55 Published online: 11 August 2021 DOI: 10.1051/0004-6361/202140685