Fibre Feeding the UES

Details Fibre Feeding the UES Fibre Feeding the UES

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ingn....3...29w&link_type=abstract

The Newsletter of the Isaac Newton Group of Telescopes (ING Newsl.), issue no. 3, p. 29-31

Physics

High-Resolution Spectroscopy, Ues, Wht, Fibre Feeding.

Scientific paper

This report summarises the recent successful deployment of a fibre feed to the Utrecht Echelle Spectrograph (UES). The main advantage of this feed, as opposed to the conventional Nasmyth direct feed, is that the starlight is spread along the slit, redu cing sensitivity to flat field errors, and allowing increased integration times on bright objects. The prototype setup, which uses a 33-m fibre and is optimised for wavelengths around 5500 Å, gives throughput at least as good as conventional slit spectrosc opy with the more efficient of the UES de-rotators between 5000 and 6000 Å.

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