A method for improving the signal-to-noise ratio in IUE high-dispersion spectra

Details A method for improving the signal-to-noise ratio in IUE high-dispersion spectra A method for improving the signal-to-noise ratio in IUE high-dispersion spectra

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988esasp.281b.403w&link_type=abstract

In ESA, Proceedings of the Celebratory Symposium on a Decade of UV Astronomy with the IUE Satellite, Volume 2 p 403-406 (SEE N89

Astronomy and Astrophysics

Astronomy

Iue, Signal To Noise Ratios, Spaceborne Astronomy, Ultraviolet Astronomy, Ultraviolet Spectra, Data Processing, Image Processing, Spectrum Analysis

Scientific paper

The flat-fielding technique was used to reduce fixed pattern noise in high dispersion IUE spectra, producing improvements in S/N of typically 40 percent compared with un-flat-fielded summed spectra. Weak spectral features may be more reliably identified. Such improvements are noted for specially obtained multiply-exposed images and for singly-exposed images taken from the IUE archives. However it is unclear if the technique is usable or as effective for all spectra.

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