Table 3 Representative Detection Limits for Resolved Binaries Method N lambda rho_1 rho_2 rho_3 rho_4 Deltam_1 Deltam_2 Deltam_3 Deltam_4 Ref. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) HIP1 all 550 0.09 0.14 0.4 10.0 0.0 2.2 4.0 4.3 Perryman & ESA (1997) WDS all 550 0.15 1.0 10.0 30.0 2.5 5.0 8.0 9.4 5 + 3log_10rho" Speckle 604 540 0.03 0.15 1.00 1.50 0.50 4.33 5.63 5.63 Tokovinin et al. (2010a) AO 122 2200 0.09 1.00 2.00 5.00 1.00 6.32 8.60 9.90 Metchev & Hillenbrand (2009) AO 107 2272 0.054 0.15 0.90 9.00 0.0 5.42 7.48 7.48 Tokovinin et al. (2012, 2013) 2MASS all 2200 3.0 9.0 20.0 30.0 0.0 7.5 10 11 Tokovinin (2011)