Properties of the transient X-ray pulsar Swift J1816.7–1613 and its optical companion Armin Nabizadeh, Sergey S. Tsygankov, Dmitrij I. Karasev, Juhani Mönkkönen, Alexander A. Lutovinov, Dmitrij I. Nagirner and Juri Poutanen A&A, 622 (2019) A198 Published online: 19 February 2019 DOI: 10.1051/0004-6361/201834635