2001/10/23 by J. H. Lacy, J. H. Lacy, M. J. Richter +8 · 256 citations
Chemistry · Engineering · Physics and Astronomy · #Adaptive optics and wavefront sensing #Astronomy #Computer science #Field of view #Geology #Grating #Infrared #Near-infrared spectroscopy #Observatory #Optical Polarization and Ellipsometry #Optics #Physics #Pixel #Remote sensing #Resolution (logic) #Slit #Spectral line #Spectral resolution #Spectrograph #Spectroscopy and Laser Applications #Telescope #astro-ph
paper · pdf · doi:10.1086/338730
published in Publications of the Astronomical Society of the Pacific 114(792), 153-168 (Institute of Physics) · 33 pages, 11 figures. Accepted to PASP. For slightly better, color versions of Figs 1-3, see http://nene.as.utexas.edu/richter/texes/pasp
arxiv created 2001/10/23 · openalex publication_date 2002/02/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss the design and performance of TEXES, the Texas Echelon Cross Echelle Spectrograph. TEXES is a mid‐infrared (5–25 μm) spectrograph with several operating modes: high resolution, cross‐dispersed with a resolving power of R = λ/δλ ≈ 100,000, 0.5% spectral coverage, and a ∼1 5 × 8 '' slit; medium resolution, long‐slit with R ≈ 15,000, 0.5% coverage, and a ∼1 5 × 45 '' slit; low‐resolution, long‐slit with δλ ≈ 0.004 μm, 0.25 μm coverage, and a ∼1 5 × 45 '' slit; and source acquisition imaging with 0 33 pixels and a 25 '' × 25 '' field of view on a 3 m telescope. TEXES has been used at the McDonald Observatory 2.7 m and the NASA Infrared Telescope Facility 3 m telescopes and has proved to be both sensitive and versatile.