Camera Artifacts in IUE High-Dispersion Spectra
Crenshaw, D. Michael; Bruegman, Ottow W.; Johnson, Rita; Fitzurka, Michelle
United States
Abstract
Sky-background images obtianed with the International Ultraviolet Explorer (IUE) have been analyzed to identify camera artifacts in high-dispersion point-source spectra observed through the large aperture. The camera artifacts are artificial emission features that are apparent in all IUE spectra with exposure times longer than about one hour. The positions of the strong artifacts in each order are given, and plots of the sky background spectra are made available to aid scientists in the identification of artifacts in their spectra. (SECTION: Astronomical Instrumentation)