VIMOS-VLT Deep Survey: Evolution of the Large Scale Structure of the Universe from z 2 until now
نویسندگان
چکیده
and the VVDS team† We discuss the evolution of clustering of galaxies back to z 2. For that purpose we use the VIMOS-VLT Deep Survey (VVDS) data. We analyze the evolution of the projected two-point correlation function for the global galaxy population and for particular galaxy classes, with different intrinsic luminosities, spectral types, colors and other properties. For the brightest galaxies (with L>L*), for instance, the shape of the correlation function deviated from the power-law much more strongly at z 1 than it is observed now. This finding can be interpreted e.g. in the framework of Halo Occupation Distribution models (HODs) and implies a significant change in the way luminous galaxies traced dark-matter halos at z 1 with respect to now. Our observations represent an important constraint for models trying to reproduce the evolution of galaxy clustering.
منابع مشابه
Studying the Evolution of Large-scale Structure with the Vimos-vlt Deep Survey
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 deg to IAB = 24 (VVDS-Deep), 35, 000 spectra over ∼ 7 deg 2 to IAB = 22.5 (VVDS-Wide). The current “First Epoch” data from VVDS-Deep already allow investigations of galaxy clustering and its dependence on ...
متن کاملThe VIMOS - VLT Deep Survey ⋆ Evolution of the galaxy luminosity function up to z = 2 in first epoch data
We investigate the evolution of the galaxy luminosity function from the VIMOS-VLT Deep Survey (VVDS) from the present to z = 2 in five (U , B, V , R and I) rest-frame band-passes. We use the first epoch VVDS deep sample of 11,034 spectra selected at 17.5 ≤ IAB ≤ 24.0, on which we apply the Algorithm for Luminosity Function (ALF), described in this paper. We observe a substantial evolution with ...
متن کاملEarly results from the VIMOS VLT Deep Survey
The VIMOS VLT Deep Survey (VVDS) is underway to study the evolution of galaxies, large scale structures and AGNs, from the measurement of more than 100000 spectra of faint objects. We present here the results from the first epoch observations of more than 20000 spectra. The main challenge of the program, the redshift measurements, is described, in particular entering the “redshift desert” in th...
متن کاملEvidence for environment - dependent galaxy Luminosity Function up to z = 1 . 5 in the VIMOS - VLT Deep Survey ⋆
We measure the evolution of the galaxy Luminosity Function as a function of large-scale environment up to z = 1.5 from the VIMOS-VLT Deep Survey (VVDS) first epoch data. The 3D galaxy density field is reconstructed using a gaussian filter of smoothing length 5h Mpc and a sample of 6582 galaxies with 17.5 ≤ IAB ≤ 24 and measured spectroscopic redshifts. We split the sample in four redshift bins ...
متن کاملThe VIRMOS-VLT Deep Survey
The aim of the VIRMOS VLT Deep Survey (VVDS) is to study of the evolution of galaxies, large scale structures and AGNs from a sample of more than 150,000 galaxies with measured redshifts in the range 0 ≤ z ≤ 5+. The VVDS will rely on the VIMOS and NIRMOS wide field multi-object spectrographs, which the VIRMOS consortium is delivering to ESO. Together, they offer unprecedented multiplex capabili...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2009