Atomic jet from SMM1 (FIRS1) in Serpens uncovers protobinary companion O. Dionatos, J. K. Jørgensen, P. S. Teixeira, M. Güdel and E. Bergin A&A, 563 (2014) A28 Published online: 27 February 2014 DOI: 10.1051/0004-6361/201322799