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We present a description of a new 1--5 $mu$m filter set similar to the long-used JHKLM filter set derived from that of Johnson. The new Mauna Kea Observatories Near-Infrared (MKO-NIR) filter set is designed to reduce background noise, improve photometric transformations from observatory to observatory, provide greater accuracy in extrapolating to zero air mass, and reduce the color dependence in the extinction coefficient in photometric reductions. We have also taken into account the requirements of adaptive optics in setting the flatness specification of the filters. A complete technical description is presented to facilitate the production of similar filters in the future.
The isophotal wavelengths, flux densities, and AB magnitudes for Vega (alpha Lyr) are presented for the Mauna Kea Observatories near-infrared filter set. We show that the near-infrared absolute calibration for Vega determined by Cohen et al. and Mege
We present Land M photometry, obtained at UKIRT using the Mauna Kea Observatories Near-IR filter set, for 46 and 31 standard stars, respectively. The L standards include 25 from the UKIRT in-house Bright Standards with magnitudes deriving from Elias
JHK photometry in the Mauna Kea Observatory (MKO) near-IR system is presented for 115 stars. Of these, 79 are UKIRT standards and 42 are LCO standards. The average brightness is 11.5 mag, with a range of 10 to 15. The average number of nights each st
Template fits to observed galaxy fluxes allow calculation of K-corrections and
We construct a filtered simplicial complex $(X_L,f_L)$ associated to a subset $Xsubset mathbb{R}^d$, a function $f:Xrightarrow mathbb{R}$ with compactly supported sublevel sets, and a collection of landmark points $Lsubset mathbb{R}^d$. The persisten