The magnetic field of the double-lined spectroscopic binary system HD 5550 E. Alecian, A. Tkachenko, C. Neiner, C. P. Folsom, B. Leroy and Collaboration the BinaMIcS A&A, 589 (2016) A47 Published online: 12 April 2016 DOI: 10.1051/0004-6361/201527355