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Proceedings Paper

Optimal resolutions for IR spectroscopy through the OH airglow
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Paper Abstract

The OH airglow emission lines are the dominant source of background emission in the near-IR J and H bandpasses. In principle, these emission lines can be avoided by observing at sufficiently high spectral resolution, rejecting pixels contaminated by OH lines, and rebinning to the desired resolution. Two trade-offs to this approach are non- negligible detector noise per pixel and the added expense of instrumentation with higher resolution. In this contribution, we simulate various observed and desired resolutions as a function of detector noise and target brightness to develop a set of guidelines for the optimal resolution in a variety of observing programs. As a general rule, observing at a 2-pixel resolution of 2000-4000 provides optimal OH rejection for a wide range of detector noise and source signal.

Paper Details

Date Published: 16 August 2000
PDF: 8 pages
Proc. SPIE 4008, Optical and IR Telescope Instrumentation and Detectors, (16 August 2000); doi: 10.1117/12.395526
Show Author Affiliations
Paul Martini, The Ohio State Univ. (United States)
Darren L. DePoy, The Ohio State Univ. (United States)


Published in SPIE Proceedings Vol. 4008:
Optical and IR Telescope Instrumentation and Detectors
Masanori Iye; Alan F. M. Moorwood, Editor(s)

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