Parasite light effects in International Ultraviolet Explorer (IUE) low resolution spectra

Crivellari, L.; Morossi, C.
Referencia bibliográfica

The second European International Ultraviolet Explorer (IUE) Conference, held 26-28 March 1980 in Tübingen, West Germany. Edited by B. Battrick and J. Mort. ESA SP-157, p. 99-102

Advertised on:
4
1980
Número de autores
2
Número de autores del IAC
0
Número de citas
5
Número de citas referidas
5
Descripción
Procedures were developed for extracting low resolution spectra while correcting for halation effects and scattered light within the instrument. To correct for halation, the spectra were extracted from the line-by-line images. Perpendicular scans of the image were fitted using an iterative least squares procedure with a known form function. The fitting function was a linear combination of a Gaussian with a Lorentz function. Correction for light scattered from the gratings employed a guess and test method. A priori choices of schematic spectral distributions were used to compute different sets of scattered light coefficients. Satisfactory results are shown for both methods.