The International Ultraviolet Explorer (IUE) point spread function at low resolution

Details The International Ultraviolet Explorer (IUE) point spread function at low resolution The International Ultraviolet Explorer (IUE) point spread function at low resolution

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...144..335c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 144, no. 2, March 1985, p. 335-342.

Astronomy and Astrophysics

Astronomy

50

Iue, Point Spread Functions, Spatial Resolution, Spectral Resolution, Ultraviolet Astronomy, Ultraviolet Spectra, Cameras, Focusing, Ultraviolet Photography, Ultraviolet Telescopes, Wavelengths

Scientific paper

The resolution performances obtainable with IUE low resolution images are reviewed. It is shown that the spatial resolution (perpendicular to the dispersion) is strongly dependent on the telescope focussing conditions while the spectral resolution is not. After determining the telescope optimum focussing conditions, information is provided on the wavelength dependence of the spectral and spatial resolution at optimum focus for the three operational cameras (SWP, LWP, and LWR). The analytical shape of the PSF perpendicular to the dispersion is then analysed.

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