Computer Science – Numerical Analysis
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasp..106.1298h&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 106, no. 706, p. 1298-1309
Computer Science
Numerical Analysis
10
Airglow, Gratings (Spectra), Hydroxyl Emission, Line Spectra, Numerical Analysis, Retarding, Background Radiation, Bandpass Filters, Computer Programs, Near Infrared Radiation, Night Sky, Signal To Noise Ratios
Scientific paper
Atmospheric airglow lines, in particular those from the OH molecule, are a major source of background radiation at near-infrared wavelengths (1-2.3 microns). Because of this, several observatories around the world are investigating the potential for blocking these emission lines using instruments based on filters or diffraction gratings. This paper presents numerical calculations of the performance of such devices. A flexible computer program automates the evaluation of several OH-blocking schemes and allows optimization of instrument parameters. A number of important conclusions arise from the study of filter-based and general grating (dispersive) configurations designed for the H(1.5-1.8 microns) and J(1.13-1.37 microns) photometric bands.
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