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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/43374
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- A faint galaxy redshift survey to B=24
- Glazebrook, Karl; Ellis, Richard S.; Colless, Matthew; Broadhurst, Thomas J.; Allington-Smith, Jeremy; Tanvir, Nial R.
- Using the multislit LDSS-2 spectrograph on the William Herschel Telescope we have completed a redshift survey in the magnitude range 22.5 < B < 24 which has produced 73 redshifts representing a 73% complete sample uniformly-selected from four deep fields at high Galactic latitude. The survey extends out to z > 1 and includes the highest redshift galaxy (z = 1.108) yet discovered in a field sample. The median redshift, zmed = 0.46, and form of the redshift distribution constitute compelling evidence against simple luminosity evolution as an explanation of the large excess of faint galaxies (similar or equal to x 2-4 no-evolution) seen in this magnitude range. Rather we identify the excess population as blue objects with z ~ 0.4 and B, luminosities similar to local L* galaxies indicating a dramatic decrease in the density of such objects over the last Hubble time, confirming the trends found in brighter redshift surveys. We also find a marked absence of very low redshift galaxies (z < 0.1) at faint limits, severely constraining any significant steepening of the local field galaxy luminosity function at low luminosities.
- Publication type
- Journal article
- Monthly Notices of the Royal Astronomical Society, Vol. 273, no. 1 (Mar 1995), pp. 157-168
- Publication year
- Wiley-Blackwell Publishing
- Publisher URL
- Copyright © 1995 RAS. The accepted manuscript of the paper is reproduced here in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.