Physics – Optics
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.253..222w&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 253, Nov. 15, 1991, p. 222-234. Research supported by S
Physics
Optics
15
Astronomical Spectroscopy, Charge Coupled Devices, Galactic Radiation, Schmidt Telescopes, Fiber Optics, Imaging Techniques, Visible Spectrum
Scientific paper
A CCD detector system has been built for use with the FLAIR multi-object spectrograph at the UKST. It is shown that using FLAIR, velocities can be obtained for 80 percent of galaxies sampled uniformly to 16.75 mag. The velocity accuracy for absorption-line redshifts is typically +/-150 km/s. These results apply to observations made in the blue (4000-5000 A) spectral range; the proportion of galaxies for which absorption-line redshifts can be obtained is significantly higher than in initial tests when only long wavelength (greater than 5000 A) observations were possible. Using this observational configuration, a survey of galaxies in nine UKST fields has been completed.
Hale-Sutton D.
Oates Anthony P.
Shanks Tom
Watson Fred G.
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