A search for faint companions using the Hubble Space Telescope found no supporting evidence for a large Jupiter or brown dwarf sized object (Schroeder et al, 2000). (members.nova.org)
The capability of the IFS to faithfully retrieve the spectra of the detected faint companions was also considered. -RCB- (arxiv.org)
A faint star with an even fainter companion came close enough some 70,000 years ago to perturb distant comets in our solar system (scientificamerican.com)