Evidence of a sub-stellar companion around HD 47536 J. Setiawan, A. P. Hatzes, O. von der Lühe, L. Pasquini, D. Naef, L. da Silva, S. Udry, D. Queloz and L. Girardi A&A, 398 2 (2003) L19-L23 Published online: 21 January 2003 DOI: 10.1051/0004-6361:20021846