The zCOSMOS Data Release 2: the ``zCOSMOS-bright 10k-sample'' and structure in the Universe out to redshifts of order unity

Details The zCOSMOS Data Release 2: the ``zCOSMOS-bright 10k-sample'' and structure in the Universe out to redshifts of order unity The zCOSMOS Data Release 2: the ``zCOSMOS-bright 10k-sample'' and structure in the Universe out to redshifts of order unity

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008msngr.134...35l&link_type=abstract

The Messenger, vol. 134, p. 35-40

Physics

5

Scientific paper

The global COSMOS project is aimed at understanding the evolution of galaxies and active galactic nuclei, and in particular the role of the galactic environment in that evolution. It is built around observations of a single equatorial 1.7 deg2 field corresponding to transverse dimensions of 100 x 100 Mpc2 at high redshift. The COSMOS field is emerging as the premier extragalactic survey field, and is currently the object of study of large observational programmes on most of the major observational facilities around the world. The zCOSMOS programme on the VLT is securing spectroscopic redshifts for a very large number of galaxies and quasars over the whole redshift range 0 < z < 3.5, using the VIMOS spectrograph. This allows the environment of galaxies to be characterised on all scales from that of the immediate group environment, 100 kpc, up to the 100 Mpc scales of the cosmic web. The second public data release, DR2, of approximately 10000 zCOSMOS spectra, took place via the ESO Science Data Archive in October 2008. This article describes the current status of the project and in particular of this so-called '10k-sample', and our reconstruction of large-scale structure in the Universe out to z ~ 1.

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