High-Resolution Spectroscopy in the SALT Era

Details High-Resolution Spectroscopy in the SALT Era High-Resolution Spectroscopy in the SALT Era

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..752...22t&link_type=abstract

STELLAR ASTROPHYSICS WITH THE WORLD'S LARGEST TELESCOPES: First International Workshop on Stellar Astrophysics with the World's

Astronomy and Astrophysics

Astrophysics

1

Stellar Characteristics And Properties, Photometric, Polarimetric, And Spectroscopic Instrumentation

Scientific paper

As part of its contribution to the SALT partnership, the University of Canterbury expects to build a fibre-fed, high-resolution stellar spectrograph with excellent wavelength stability. The design, with separate red and blue arms, is based on a dual R4 échelle grating with cross dispersion provided by Volume Phase Holographic Gratings. Separate fibres will permit simultaneous observation of target and sky; different fibre pairs and injection optics will provide three different resolving powers between ~17 000 and 80 000. These properties are pertinent to a range of astrophysical problems of interest to both SALT partners and University of Canterbury astronomers.

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