A new study of the spectroscopic binary 7 Vul with a Be star primary P. Harmanec, J. Lipták, P. Koubský, H. Božić, J. Labadie-Bartz, M. Šlechta, S. Yang and A. Harmanec A&A, 639 (2020) A32 Published online: 03 July 2020 DOI: 10.1051/0004-6361/202037964