Processing and interpretation of preflight FUSE spectra

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Abstract
H2 and Pt-Ne gal map spectra acquired during the pre- flight optical testing of the FUSE have been studied in order to refine the science data processing procedure. Using automated spectral line identification software and raytrace models of instrument point spread functions, a pre-flight optical performance assessment was completed. The method by which the raw 2D FUSE detector data are converted into calibrated, 1D spectra is described and illustrated using spectrograph integration and test data (I and T). A pre- flight estimate of the resolving power of FUSE is presented along with a thorough description of the associated approximations used to convert measured values of (lambda) /(Delta) (lambda) to resolving power. The PSF of data from spectrograph I and T and optical-end-to-end testing are presented, and the test factors causing their different appearances is discussed.

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