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The Messenger 119
March 2005


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THE VIMOS-VLT DEEP SURVEY FIRST EPOCH
OBSERVATIONS: EVOLUTION OF GALAXIES,
LARGE SCALE STRUCTURES AND AGNS OVER
90% OF THE CURRENT AGE OF THE UNIVERSE

O. LE FEVRE[1], G. VETTOLANI[2], D. BOTTINI[3], B. GARILLI[3], V. LE BRUN[1], D. MACCAGNI[3], J.-P. PICAT[4], R. SCARAMELLA[9], M. SCODEGGIO[3], L. TRESSE[1], A. ZANICHELLI[2], C. ADAMI[1], M. ARNABOLDI[10], S. ARNOUTS[1], S. BARDELLI[5], M. BOLZONELLA[5,12], A. CAPPI[5], S. CHARLOT[6], P.CILIEGI[22], T. CONTINI[4], P. FRANZETTI[3], S. FOUCAUD[2], I. GAVIGNAUD[4,11], L. GUZZO[7], O. ILBERT[5,12], A. IOVINO[7], H.-J. MCCRACKEN[8,13], B. MARANO[12], C. MARINONI[7], A. MAZURE[1], B. MENEUX[1], R. MERIGHI[5], S. PALTANI[1], R. PELLÒ[4], A. POLLO[7], L. POZZETTI[5], M. RADOVICH[10], G. ZAMORANI[5], E. ZUCCA[5], M. BONDI[5], A. BONGIORNO[12], G. BUSARELLO[10] F. LAMAREILLE[4], G. MATHEZ[4], Y. MELLIER[8,13], P. MERLUZZI[10], V. RIPEPI[10], D. RIZZO[44]

[1]LABORATOIRE D’ASTROPHYSIQUE DE MARSEILLE, FRANCE; [2]ISTITUTO DI RADIO ASTRONOMIA, BOLOGNA, ITALY [3]ISTITUTO DI ASTROFISICA SPAZIALE E FISICA COSMICA, INAF-MILAN, ITALY; [4]OBSERVATOIRE MIDI-PYRENEES, TOULOUSE, FRANCE; [5]OSSERVATORIO ASTRONOMICO DI BOLOGNA, INAF, ITALY; [6]MAX PLANCK INSTITUT FÜR ASTRONOMIE, GARCHING, GERMANY; [7]OSSERVATORIO ASTRONOMICO DI BRERA, INAF, ITALY; [8]INSTITUT D’ASTROPHYSIQUE DE PARIS, FRANCE; [9]OSSERVATORIO ASTRONOMICO DI ROMA, INAF, ITALY; [10]OSSERVATORIO ASTRONOMICO DI CAPODIMONTE, INAF, NAPLES, ITALY; [11]EUROPEAN SOUTHERN OBSERVATORY, GARCHING, GERMANY; [12]DEPARTMENT OF ASTRONOMY, UNIVERSITY OF BOLOGNA, ITALY; [13]LERMA, OBSERVATOIRE DE PARIS, FRANCE

Abstract: The VIMOS VLT deep survey (VVDS) is a major redshift survey of the distant universe, aimed at studying the evolution of galaxies, large scale structures and AGNs over more than 90% of the age of the universe. A total of 41000 spectra have been observed so far. From the first epoch observations conducted with VIMOS, we have assembled ~11000 redshifts for galaxies with 0 < z < 5 selected with magnitude Iab < 24 in an area 3.1 times the area of the full moon. We present evidence for a strong evolution of the luminosity of galaxies and show that galaxies are already distributed in dense structures at z ~ 1.5. The high redshift population of ~1000 galaxies with 1.4 < z < 5 appears to be more numerous than previously believed. As the survey continues, we are assembling multi-wavelength data in collaboration with other teams (Galex, Spitzer-Swire, XMM-LSS, VLA), as well as expanding to larger scales (~100 MPC) to probe the universe in an unprecedented way.

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