Isophotal wavelengths, isophotal frequencies, and flux densities for Vega for the MKO-NIR filters May 2005 The Mauna Kea Observatories Near-Infrared filter set is defined in the papers by D.A. Simons and A.T. Tokunaga (2002, PASP, 114, 169) and A.T. Tokunaga, D.A. Simons, and W.D.Vacca (2002, PASP, 114, 180). These filters were designed to minimize the effects of water vapor at observatories at altitudes of greater than or equal to 2 km. Additional information on these filters can be found at: www.ifa.hawaii.edu/~tokunaga/. Cold filter scans can be found at: http://irtfweb.ifa.hawaii.edu/~nsfcam/filters.html. The isophotal wavelengths, isophotal frequencies, and flux densities for Vega were published in Tokunaga and Vacca (2005, PASP, 117, 421); note the erratum. A summary of the results are shown in the following tables. The Z and Y filters (0.921 and 1.036 microns respectively) used by the UKIRT Wide-Field Camera have been added to the tables below. For information on WFCAM, see www.jach.hawaii.edu/UKIRT/instruments/wfcam/ Isophotal wavelengths and flux densities for Vega. Filter Wavel> F-lambda um (W/m2/um) V 0.5450 3.58E-08 Z 0.9206 8.74E-09 Y 1.036 5.81E-09 J 1.250 3.01E-09 H 1.644 1.18E-09 K' 2.121 4.57E-10 Ks 2.149 4.35E-10 K 2.198 4.00E-10 L' 3.754 5.31E-11 M' 4.702 2.22E-11 Isophotal frequency, flux density, and AB mag for Vega. Filter Freq F-nu AB mag (Hz) (Jy) V 5.490E+14 3630 0.026 Z 3.071E+14 2270 0.535 Y 2.870E+14 2060 0.64 J 2.394E+14 1560 0.941 H 1.802E+14 1040 1.38 K' 1.413E+14 686 1.84 Ks 1.395E+14 670 1.86 K 1.364E+14 645 1.90 L' 7.982E+13 249 2.93 M' 6.350E+13 163 3.40