Luigi Guzzo

The zCOSMOS 10k-Bright Spectroscopic Sample (2009)

Lilly, Simon J., Le Brun, Vincent, Maier, Christian, Mainieri, Vincenzo, Mignoli, Marco, Scodeggio, Marco, ...

We present spectroscopic redshifts of a large sample of galaxies with I_(AB) < 22.5 in the COSMOS field, measured from spectra of 10,644 objects that have been obtained in the first two years of...

The Chandra COSMOS Survey. I. Overview and Point Source Catalog (2009)

Elvis, Martin, Civano, Francesca, Vignali, Cristian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...

The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.5 deg^2 of the COSMOS field (centered at 10 ^h , +02 ^o ) with an effective exposure of ~160 ks,...

The Chandra COSMOS Survey, I: Overview and Point Source Catalog (2009)

Elvis, Martin, Civano, Francesca, Vignali, Cristian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...

The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra} program that has imaged the central 0.5 sq.deg of the COSMOS field (centered at 10h, +02deg) with an effective exposure of ~160ksec,...

Findings of the Joint Dark Energy Mission Figure of Merit Science Working Group (2009)

Albrecht, Andreas, Amendola, Luca, Bernstein, Gary, Clowe, Douglas, Eisenstein, Daniel, Guzzo, Luigi, ...

These are the findings of the Joint Dark Energy Mission (JDEM) Figure of Merit (FoM) Science Working Group (SWG), the FoMSWG. JDEM is a space mission planned by NASA and the DOE for launch in the...

The XMM-Newton wide-field survey in the COSMOS field: V. Angular Clustering of the X-ray Point Sources (2006)

Miyaji, Takamitsu, Zamorani, Giovanni, Cappelluti, Nico, Gilli, Roberto, Griffiths, Richard E., Comastri, Andrea, ...

We present the first results of the measurements of angular auto-correlation functions (ACFs) of X-ray point sources detected in the XMM-Newton observations of the 2 deg2 COSMOS field (XMM-COSMOS). A...

Observational Constraints on General Relativistic Energy Conditions, Cosmic Matter Density and Dark Energy from X-Ray Clusters of Galaxies and Type-Ia Supernovae (2002)

Schuecker, Peter, Caldwell, Robert R., Böhringer, Hans, Collins, Chris A., Guzzo, Luigi, Weinberg, Nevin N.

New observational constraints on the cosmic matter density $\Omega_m$ and an effectively redshift-independent equation of state parameter $w_x$ of the dark energy are obtained while simultaneously...

The REFLEX Galaxy Cluster Survey VII: Omega_m and sigma_8 from cluster abundance and large-scale clustering (2002)

Schuecker, Peter, Böhringer, Hans, Collins, Chris A., Guzzo, Luigi

For the first time the large-scale clustering and the mean abundance of galaxy clusters are analysed simultaneously to get precise constraints on the normalized cosmic matter density $\Omega_m$ and...

The ROSAT-ESO Flux-Limited X-Ray (REFLEX) Galaxy Cluster Survey VI: Constraints on the cosmic matter density from the KL power spectrum (2002)

Schuecker, Peter, Guzzo, Luigi, Collins, Chris A., Boehringer, Hans

The Karhunen-Lo\'{e}ve (KL) eigenvectors and eigenvalues of the sample correlation matrix are used to analyse the spatial fluctuations of the REFLEX clusters of galaxies. The method avoids the...

The ROSAT-ESO Flux-Limited X-ray (REFLEX) galaxy cluster survey - VI. Constraints on the cosmic matter density from the KL power spectrum (2002)

Schuecker, Peter, Guzzo, Luigi, Collins, Chris A., Böhringer, Hans

The Karhunen-Loeve (KL) eigenvectors and eigenvalues of the sample correlation matrix are used to analyse the spatial fluctuations of the REFLEX clusters of galaxies. The method avoids the disturbing...

The BMW X-ray Cluster Survey (2001)

Moretti, Alberto, Guzzo, Luigi, Campana, Sergio, Covino, Stefano, Lazzati, Davide, Longhetti, Marcella, ...

We describe the main features of the BMW survey of serendipitous X-ray clusters, based on the still unexploited ROSAT-HRI archival observations. The sky coverage, surface density and first deep...

The ROSAT-ESO Flux-Limited X-Ray (REFLEX) Galaxy Cluster Survey III: The Power Spectrum (2000)

Schuecker, Peter, Boehringer, Hans, Guzzo, Luigi, Collins, Chris A., Neumann, Doris M., Schindler, Sabine, ...

We present a measure of the power spectrum on scales from 15 to 800 Mpc/h using the ROSAT-ESO Flux-Limited X-Ray(REFLEX) galaxy cluster catalogue. The REFLEX survey provides a sample of the 452 X-ray...

Large-Scale Structure at the Turn of the Millennium (1999)

Guzzo, Luigi

I review the current status of studies of the large-scale structure of the Universe using redshift surveys of galaxies and clusters of galaxies. I first summarise the advances we have made in our...

EISily looking for distant galaxy clusters (1998)

Lobo, Catarina, Lazzati, Davide, Iovino, Angela, Guzzo, Luigi, Chincarini, Guido

We present a new algorithm to search for distant clusters of galaxies on catalogues deriving from imaging data, as those of the ESO Imaging Survey. We discuss the advantages of our technique relative...

Is the Universe Homogeneous? (On Large Scales) (1997)

Guzzo, Luigi

I critically discuss in a pedagogical and phenomenological way a few crucial tests challenging the claims by Pietronero and collaborators that there is no evidence from available galaxy catalogues...

Redshift-Space Distortions and the Real-Space Clustering of Different Galaxy Types (1997)

Guzzo, Luigi, Strauss, Michael A., Fisher, Karl B., Giovanelli, Riccardo, Haynes, Martha P.

We study the distortions induced by peculiar velocities on the redshift-space correlation function of galaxies of different morphological types in the Pisces-Perseus redshift survey. Redshift-space...

Redshift--Space Distortions and the Real--Space Clustering of Different Galaxy Types (1997)

Luigi Guzzo, Michael A. Strauss, Karl B. Fisher, Riccardo Giovanelli, Martha P. Haynes

We study the distortions induced by peculiar velocities on the redshift--space correlation function of galaxies of different morphological types in the Pisces--Perseus redshift survey....

Redshift Surveys and Large--Scale Structure (1996)

Guzzo, Luigi

I review the present status of the mapping of the large-scale structure of the Universe through wide-angle redshift surveys. In the first part of the paper, I discuss the current state of the art,...

The ESO All-Southern-Sky Redshift Survey of ROSAT Clusters of Galaxies (1994)

Guzzo, Luigi

We discuss the rationale and the present status of a large redshift survey aiming at measuring distances for all the clusters of galaxies detected by the ROSAT X--ray All--Sky Survey in the southern...

Modelling the Power Spectrum of Density Fluctuations: A Phenomenological Approach (1994)

Branchini, Enzo, Guzzo, Luigi, Valdarnini, Riccardo

We show how, based on considerations on the observed form of the galaxy 2-point spatial correlation function xi(r), a very simplified -- yet surprisingly effective -- model for the linear density...