Multiplicity Study of exoplanet host stars: The HD3651AB system
  We report on new results of our multiplicity study and present our follow-up observations of the recently detected faint companion HD3651B, the first directly imaged T dwarf companion of an exoplanet host star. 
M. Mugrauer, A. Seifahrt, R. Neuhaeuser, T. Mazeh, T. Schmidt