TEXES: A Sensitive High-Resolution Grating Spectrograph for the Mid-Infrared

J. H. Lacy; M. J. Richter; T. K. Greathouse; D. T. Jaffe; Q. Zhu

doi:10.1086/338730

TEXES: A Sensitive High-Resolution Grating Spectrograph for the Mid-Infrared

Astrophysics 2009-11-07 v1

Authors: J. H. Lacy , M. J. Richter , T. K. Greathouse , D. T. Jaffe , Q. Zhu

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We discuss the design and performance of TEXES, the Texas Echelon Cross Echelle Spectrograph. TEXES is a mid-infrared (5-25 um) spectrograph with several operating modes: high-resolution, cross-dispersed with a resolving power of R=100,000, 0.5% spectral coverage, and a ~1.5 by 8" slit; medium-resolution long-slit with R~15,000, 0.5% coverage, and a ~1.5 by 45" slit; low-resolution long-slit with (delta lambda)~0.004 um, 0.25 um coverage, and a ~1.5 by 45" slit; and source acquisition imaging with 0.33" pixels and a 25 by 25" field of view on a 3m telescope. TEXES has been used at the McDonald Observatory 2.7m and the IRTF 3m telescopes, and has proven to be both sensitive and versatile.

Keywords

astronomical instrumentation and telescopes diffraction gratings solar instrument calibration

Cite

@article{arxiv.astro-ph/0110521,
  title  = {TEXES: A Sensitive High-Resolution Grating Spectrograph for the Mid-Infrared},
  author = {J. H. Lacy and M. J. Richter and T. K. Greathouse and D. T. Jaffe and Q. Zhu},
  journal= {arXiv preprint arXiv:astro-ph/0110521},
  year   = {2009}
}

Comments

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

TEXES: A Sensitive High-Resolution Grating Spectrograph for the Mid-Infrared

Abstract

Keywords

Cite

Comments

Related papers