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arXiv · astro-ph/0701273

Studying the evolution of large-scale structure with the VIMOS-VLT Deep Survey

L. Guzzo·O. Le Fevre·B. Meneux·A. Pollo·C. Marinoni·A. Cappi·O. Cucciati·B. Garilli·A. Iovino·H. J. McCracken·D. Bottini·V. Le Brun·D. Maccagni·J. P. Picat·R. Scaramella·M. Scodeggio·L. Tresse·G. Vettolani·A. Zanichelli
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Abstract

The VIMOS-VLT Deep Survey (VVDS) currently offers a unique combination of depth, angular size and number of measured galaxies among surveys of the distant Universe: ~ 11,000 spectra over 0.5 deg2 to I_{AB}=24 (VVDS-Deep), 35,000 spectra over ~ 7 deg2 to I_{AB}=22.5 (VVDS-Wide). The current ``First Epoch'' data from VVDS-Deep already allow investigations of galaxy clustering and its dependence on galaxy properties to be extended to redshifts ~1.2-1.5, in addition to measuring accurately evolution in the properties of galaxies up to z~4. This paper concentrates on the main results obtained so far on galaxy clustering. Overall, L* galaxies at z~ 1.5 show a correlation length r_0=3.6\pm 0.7. As a consequence, the linear galaxy bias at fixed luminosity rises over the same range from the value b~1 measured locally, to b=1.5 +/- 0.1. The interplay of galaxy and structure evolution in producing this observation is discussed in some detail. Galaxy clustering is found to depend on galaxy luminosity also at z~ 1, but luminous galaxies at this redshift show a significantly steeper small-scale correlation function than their z=0 counterparts. Finally, red galaxies remain more clustered than blue galaxies out to similar redshifts, with a nearly constant relative bias among the two classes, b_{rel}~1.4, despite the rather dramatic evolution of the color-density relation over the same redshift range.

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L. Guzzo, O. Le Fevre, B. Meneux, A. Pollo, C. Marinoni, A. Cappi, O. Cucciati, B. Garilli, A. Iovino, H. J. McCracken, D. Bottini, V. Le Brun, D. Maccagni, J. P. Picat, R. Scaramella, M. Scodeggio, L. Tresse, G. Vettolani, A. Zanichelli. 2007-01-09. Studying the evolution of large-scale structure with the VIMOS-VLT Deep Survey. https://arxiv.org/abs/astro-ph/0701273

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