The ESO UV-Visual Echelle Spectrograph (UVES)

  • S. D’Odorico
Conference paper
Part of the ESO Astrophysics Symposia book series (ESO)


UVES is the cross-dispersed, echelle spectrograph built at ESO for installation at the VLT in 3Q 1999. It has two separate blue (λλ 300–500nm) and red (λλ 420–11000nm) optical paths and two CCD detectors to maximize efficiency. The slit-resolving power product is 40000, with the possibility to reach resolving powers of 80000 (blue) and 110000 (red) with a 2 pixel sampling of the instrumental profile with narrow slits or image slicers. At the typical resolution, the limiting magnitude is ~ 19.5 (S/N = 10 in 2hrs for the spectral range 400–650nm). The instrument features an image derotator for observations of extended objects, an atmospheric dispersion corrector and exposimeters to optimize the exposure time to the desired S/N ratio. The expected advantages of UVES in the study of the absorption lines in the spectra of faint QSOs are presented.


Absorption Line Instrumental Profile Blaze Angle Order Separation Echelle Grating 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Baranne, A. (1988), Proceedings of the ESO Conference on Very Large Telescope and their instrumentation, M.-H. Ulrich editor, pg 1195Google Scholar
  2. D’Odorico, S. (1995) in “Scientific and Engineering Frontiers for 8–10m Telescopes” M. Iye and T. Nishimura edts., Universal Academy Press, Inc. Tokio, pg.51Google Scholar
  3. D’Odorico, S., Kaper, L. (1996) UVES User Manual, Draft Version 1/11/96Google Scholar
  4. Miralda-Escudé, J., Ostriker, J.P.,(1990) ApJ. 350, 1ADSCrossRefGoogle Scholar
  5. Savaglio, S., Cristiani, S., D’Odorico, S., Fontana, A., Giallongo, E., Molaro. P. (1996) A&A in pressGoogle Scholar
  6. Songaila, A., Cowie, L.L., (1996) AJ. in pressGoogle Scholar
  7. Vogt, S. (1994)Proceedings of SPIE , D.L. Crawford and E.R. Craine edts. Vol 2198, pg.362Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • S. D’Odorico
    • 1
  1. 1.European Southern ObservatoryGarchingGermany

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