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Published January 2008 | public
Journal Article

Spectroscopic surveys of cosmic evolution


ALMA will be the premier instrument for the study of galaxy evolution in the early universe‚ÄĒenabling studies of the gas content, dynamics and dynamical masses, and star formation with unparalleled resolution and sensitivity. Galaxy evolution and AGN growth in the early universe are believed to be strongly driven by merging and dynamical interactions. Thus, a full exploration of the environmental influence is absolutely essential. The Cosmic Evolution Survey (COSMOS) is specifically designed to probe the correlated coevolution of galaxies, star formation, active galactic nuclei (AGN) and dark matter (DM) large-scale structure (LSS) over the redshift range z>0.5 to 3. In this contribution I review the characteristics of the COSMOS survey and very exciting initial results on mapping large scale structure in galaxies and dark matter. The survey includes multi-wavelength imaging and spectroscopy from X-ray to radio wavelengths covering a 2 square degree equatorial field. Given the very high sensitivity and resolution of these datasets, COSMOS will provide unprecedented samples of objects at z>3 for followup studies wit ALMA.

Additional Information

© 2007 Springer Science+Business Media B.V. Received: 3 April 2007; Accepted: 9 October 2007; Published online: 26 October 2007. The major COSMOS datasets become publicly available in staged releases (following calibration and validation) through the web site for IPAC/IRSA: http://irsa.ipac.caltech.edu/data/COSMOS/. I gratefully acknowledge the contributions of the entire COSMOS collaboration consisting of more than 70 scientists. The HST COSMOS Treasury program was supported through NASA grant HST-GO-09822.

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August 19, 2023
October 23, 2023