Internet Archive Scholar

VVDS-SWIRE

S. de la Torre, O. Le Fèvre, S. Arnouts, L. Guzzo, D. Farrah, A. Iovino, C. J. Lonsdale, B. Meneux, S. J. Oliver, A. Pollo, I. Waddington, D. Bottini (+44 others)
2007 Astronomy and Astrophysics  

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2007 accepted
arXiv:astro-ph/0701713v3 fatcat:tbvhht67a5gobmboxqqbrv5xjq
2007 pre-print
arXiv:astro-ph/0701713v1 fatcat:dogbfsp7sbchlkx4yx5mo7q4fe
2007 pre-print
arXiv:astro-ph/0701713v2 fatcat:2bwziu6dfng7xpm4cu42iie7ai
By combining the VVDS with the SWIRE data, we have built the currently largest spectroscopic sample of galaxies selected in the rest-frame near-infrared. These allow us to investigate, for the first time using spectroscopic redshifts, the clustering evolution of galaxies selected from their rest-frame near-infrared luminosity in the redshift range 0.2<z<2.1. Therefore we use the projected two-point correlation function wp(rp) to study the three dimensional clustering properties of galaxies
more » ... ted at 3.6 and 4.5 microns with IRAC and for which we have spectroscopic redshifts from first epoch VVDS. We find that in the flux limited samples at 3.6 and 4.5 microns, the clustering length does not change from redshift ~2 to the present. In addition, we find that the clustering lengths are systematically higher when galaxy samples are selected from increasingly redder wavelengths. These values are larger than the typical values found for I-band selected galaxies in the same redshift range, but we find that the difference in clustering length between I-band and 3.6/4.5 microns selected samples is decreasing with increasing redshift to become comparable at z~1.5. We interpret this as evidence that galaxies with older stellar populations and galaxies actively forming stars reside in comparably overdense environments at epochs earlier than z~1.5. The increasing difference in clustering length observed between rest-frame UV-optical and infrared selected samples could then be an indication that star formation is gradually shifting to lower density regions as cosmic time increases.
doi:10.1051/0004-6361:20077161 fatcat:mwvm5t44cbah3fhdnt7isbqhfi
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Citation

S. de la Torre, O. Le Fèvre, S. Arnouts, L. Guzzo, D. Farrah, A. Iovino, C. J. Lonsdale, B. Meneux, S. J. Oliver, A. Pollo, I. Waddington, D. Bottini, F. Fang, B. Garilli, V. Le Brun, D. Maccagni, J. P. Picat, R. Scaramella, M. Scodeggio, D. Shupe, J. Surace, L. Tresse, G. Vettolani, A. Zanichelli, C. Adami, S. Bardelli, M. Bolzonella, A. Cappi, S. Charlot, P. Ciliegi, T. Contini, S. Foucaud, P. Franzetti, I. Gavignaud, O. Ilbert, F. Lamareille, H. J. McCracken, B. Marano, C. Marinoni, A. Mazure, R. Merighi, S. Paltani, R. Pellò, L. Pozzetti, M. Radovich, G. Zamorani, E. Zucca, M. Bondi, A. Bongiorno, J. Brinchmann, O. Cucciati, Y. Mellier, P. Merluzzi, S. Temporin, D. Vergani, C. J. Walcher. "VVDS-SWIRE." Astronomy and Astrophysics 475.2 (2007) 443-451