VLT-UVES Long-Slit Spectroscopy

The UV Visual Echelle Spectrograph UVES (D’Odorico 1997), which has been offered to the astronomical community at the VLT since 2000, is a twoarm cross-dispersed echelle spectrograph covering the wavelength range 00–500 nm in the blue spectral region and 20–1100 nm in the red spectral region with the possibility to use dichroics. The nominal resolution is 0 000 for a 1? slit, and the maximum resolution that can be attained with a narrow slit or image slicer is 110 000 in the red and 80 000 in the blue with two-pixel sampling.