Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377l..41w&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 377, Aug. 10, 1991, p. L41-L44.
Astronomy and Astrophysics
Astrophysics
8
Hubble Space Telescope, Peculiar Stars, Spectral Resolution, Spectrographs, Stellar Spectra, Ultraviolet Spectra, High Resolution, Line Shape, Signal To Noise Ratios
Scientific paper
High-quality spectra of the sharp-lined star Chi Lupi were obtained with the Goddard High Resolution Spectrograph (GHRS). Spectra for the various resolving powers achievable with the echelle and G160M gratings are displayed. The effect of spherical aberration upon the spectral resolution is found to be negligible when using the small science aperture. The resolution of the large science aperture spectra is degraded by less than a factor of two. Efforts with spectral deconvolution using several techniques show that it is possible to regain much of the spectral resolution lost in the large science aperture if high signal-to-noise spectra are obtained.
Ebbets Dennis C.
Gilliland Ronald L.
Leckrone David S.
Lindler Don J.
Shore Steven N.
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