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The Far Ultraviolet Imaging Spectrograph on Spartan-281

  • George R. Carruthers (a1), Harry M. Heckathorn (a1), John C. Raymond (a2), Reginald J. Dufour (a3), Adolf N. Witt (a4) and Chet B. Opal (a5)...

Extract

The study of diffuse celestial sources in the ground-inaccessible ultraviolet spectral range is less advanced than UV studies of point and compact sources. The main reason is that the characteristics of instrumentation optimized for the two types of objects are quite different. Studies of diffuse objects are best made with fast focal ratio optics with wide fields of view, whereas studies of point and compact objects are best made with large telescope aperture and high angular resolution. As a result, most space ultraviolet instruments to date (such as the International Ultraviolet Explorer and the forthcoming Hubble Space Telescope) are not well suited to the study of faint, extended diffuse objects in the ultraviolet.

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Copyright

References

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Carruthers, G. R., Heckathorn, H. M., Dufour, R. J., Opal, C. B., Raymond, J. C., and Witt, A. N, 1988a, “Spartan-281 Far-UV Imaging Spectrograph,” Ultraviolet Technology II, 932 (or Proceedings of the SPIE), 87.
Carruthers, G. R., Opal, C. B., Jenkins, E. B., Lowrance, J. L., and Heckathorn, H. M., 1988b, “Development of EBCCD Cameras for the Far Ultraviolet,” Advances in Electronics and Electron Physics, 74 (Morgan, B. L., ed.), Academic Press, New York, 181.

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