CO observations of major merger pairs at z = 0: molecular gas mass and star formation Ute Lisenfeld, Cong Kevin Xu, Yu Gao, Donovan L. Domingue, Chen Cao, Min S. Yun and Pei Zuo A&A, 627 (2019) A107 Published online: 09 July 2019 DOI: 10.1051/0004-6361/201935536