S Coronae Australis: a T Tauri twin G. F. Gahm, P. P. Petrov, L. V. Tambovsteva, V. P. Grinin, H. C. Stempels and F. M. Walter A&A, 614 (2018) A117 Published online: 22 June 2018 DOI: 10.1051/0004-6361/201832891