THE MSSSO NEAR-INFRARED PHOTOMETRIC SYSTEM

The JHKL photometric system currently used at MSSSO is described via an extensive list of standard-star values and filter transmission curves. At JHK this system is identical to the MSO system defined by Jones and Hyland (1982, MNRAS, 200, 509), except for small zero-point differences which we impose here. Transformations are given between the MSSSO system and several near-infrared photometric systems in use in other observatories and the homogenized JHKL system proposed by Bessell and Brett (1988, PASP, 100, 1134).