The VIMOS VLT Deep Survey: the redshift distribution N(z) of magnitude-limited samples down to iAB=24.75 and KsAB=22

O. Le Fevre; P. Cassata; O. Cucciati; S. de la Torre; B. Garilli; O. Ilbert; V. Le Brun; D. Maccagni; L. Tresse; G. Zamorani; S. Bardelli; M. Bolzonella; T. Contini; A. Iovino; C. Lopez-Sanjuan; H. J. McCracken; A. Pollo; L. Pozzetti; M. Scodeggio; L. Tasca; D. Vergani; A. Zanichelli; E. Zucca

arXiv · 1307.6518

The VIMOS VLT Deep Survey: the redshift distribution N(z) of magnitude-limited samples down to iAB=24.75 and KsAB=22

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Abstract

We measure and analyse the redshift distribution N(z) of magnitude-selected samples using spectroscopic redshift measurement from the magnitude-selected VIMOS VLT Deep Survey (VVDS) with 17 2. Down to iAB<24.75 the sample has a mean redshift z=1.15 and 17.1% of the galaxies are beyond z=2. The projected sky density is 2.07+/-0.12 gal/arcmin2 at 1.4 2 than in colour-colour selected samples, and we use the magnitude-selected VVDS to emphasize the large uncertainties associated to other surveys using colour or colour-colour selected samples. Our results further demonstrate that semi-analytical models on dark matter simulations have yet to find the right balance of physical processes and time-scales to properly reproduce a fundamental galaxy population property like the observed N(z).

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O. Le Fevre, P. Cassata, O. Cucciati, S. de la Torre, B. Garilli, O. Ilbert, V. Le Brun, D. Maccagni, L. Tresse, G. Zamorani, S. Bardelli, M. Bolzonella, T. Contini, A. Iovino, C. Lopez-Sanjuan, H. J. McCracken, A. Pollo, L. Pozzetti, M. Scodeggio, L. Tasca, D. Vergani, A. Zanichelli, E. Zucca. 2013-07-24. The VIMOS VLT Deep Survey: the redshift distribution N(z) of magnitude-limited samples down to iAB=24.75 and KsAB=22. https://arxiv.org/abs/1307.6518

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