Gemini Preprint #73


The Mauna Kea Observatories Near-Infrared Filter Set. I: Defining Optimal 1-5µm Bandpasses

D. A. Simons
Gemini Observatory, Northern Operations Center, 670 A`ohoku Place, Hilo HI 96720

A. Tokunaga
University of Hawaii, Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822

Abstract.

A new MKO-NIR infrared filter set is described, including techniques and considerations given to designing a new set of bandpasses that are useful at both mid- and high-altitude sites. These filters offer improved photometric linearity and in many cases reduced background, as well as preserve good throughput within the JHKLM atmospheric windows. MKO-NIR filters have already been deployed within a number of instruments around the world as part of a filter consortium purchase to reduce the unit cost of filters. Through this effort we hope to establish, for the first time, a single standard set of infrared filters at as many observatories as possible.

To appear in the Publications of the Astronomical Society of the Pacific.

Download the PDF file.


Ruth A. Kneale / web@gemini.edu / August 8, 2001