924 citations · 4.8k across the 176 of their papers we have counts for
27 papers · 1 filter
A2163: Merger events in the hottest Abell galaxy cluster I. Dynamical analysis from optical data
S. Maurogordato, A. Cappi, C. Ferrari +7
We present a detailed optical analysis of the galaxy cluster A2163 based on new multicolor wide field imaging and medium-to-high resolution (R~2000) spectroscopy. While X-ray obser…
Galaxy clusters in the CFHTLS. First matched filter candidate catalogue of the Deep fields
L. F. Olsen, C. Benoist, A. Cappi +6
We apply a matched-filter cluster detection algorithm to the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) i-band data for the Deep-1, Deep-2, Deep-3 and Deep-4 fields cove…
ATCA observations of the galaxy cluster Abell 3921 - I. Radio emission from the central merging sub-clusters
C. Ferrari, R. W. Hunstead, L. Feretti +2
We present the analysis of our 13 and 22 cm ATCA observations of the central region of the merging galaxy cluster A3921 (z=0.094). We investigated the effects of the major merger b…
Star formation in the merging galaxy cluster Abell 3921
C. Ferrari, S. Maurogordato, L. Feretti +5
Through a combined optical and radio analysis, we have investigated the possible connection between the dynamical state of the merging cluster A3921 and its star formation properti…
Chandra observation of the multiple merger cluster Abell 521
C. Ferrari, M. Arnaud, S. Ettori +2
We present the Chandra analysis of the galaxy cluster A521 (z=0.247). The high resolution of the Chandra observation has allowed us to refine the original merging scenario proposed…
Dynamical state and star formation properties of the merging galaxy cluster Abell 3921
C. Ferrari, C. Benoist, S. Maurogordato +2
We present the results of a new spectroscopic and photometric survey of the central region of the galaxy cluster A3921 (z=0.094). We detect the presence of two dominant clumps of g…
Nature and Environment of Very Luminous Galaxies
Alberto Cappi, Christophe Benoist, Luiz N. da Costa +1
The most luminous galaxies in the blue passband have a larger correlation amplitude than L* galaxies. They do not appear to be preferentially located in rich clusters or groups, bu…
Galaxy Alignments as a Probe of the Dynamical State of Clusters
M. Plionis, C. Benoist, S. Maurogordato +2
We present indications, based on a sample of 303 Abell clusters, for a relation between the dynamical state of clusters and the alignments of galaxy members with their parent clust…
Multiple merging events in Abell 521
C. Ferrari, S. Maurogordato, A. Cappi +1
We present a detailed spatial and dynamical analysis of the central ~2.2~\h~Mpc region of the galaxy cluster Abell~521 (z=0.247), based on 238 spectra obtained at the 3.6~m T…
Discovery of Extreme Examples of Superclustering in Aquarius
D. J. Batuski, C. J. Miller, K. A. Slinglend +5
We report the discovery of two highly extended filaments and one extremely high density knot within the region of Aquarius. The supercluster candidates were chosen via percolation…
Abell 521: Dynamical analysis of a young cluster
S. Maurogordato, D. Proust, T. C. Beers +5
We present the results of a dynamical analysis of the rich X-Ray luminous galaxy cluster Abell 521, and discuss the nature of the arc-like structure first noted by Maurogordato et…
The ESO Slice Project (ESP) Galaxy Redshift Survey. VII. The Redshift and Real-Space Correlation Functions
L. Guzzo, J. G. Bartlett, A. Cappi +17
We present analyses of the two-point correlation properties of the ESP galaxy redshift survey. From the redshift-space correlation function xi(s), we see positive clustering out to…
The ESO Slice Project (ESP) galaxy redshift survey: VI Groups of Galaxies
M. Ramella, G. Zamorani, E. Zucca +17
In this paper we identify objectively and analyze groups of galaxies in the recently completed ESP survey. We find 231 groups above the number overdensity threshold delta(rho)/rho=…
Biasing and high-order statistics from the SSRS2
C. Benoist, A. Cappi, L. N. da Costa +3
We analyze different volume-limited samples extracted from the Southern Sky Redshift Survey (SSRS2), using counts-in-cells to compute the Count Probability Distribution Function (C…
The ESO Slice Project (ESP) galaxy redshift survey IV. A discussion of systematic biases in galaxy redshift determinations
A. Cappi, G. Zamorani, E. Zucca +17
We present a detailed discussion of the redshift errors associated to the ESO Slice Project measurements. For a subsample of 742 galaxies with redshifts determined both from the ab…
The ESO Slice Project (ESP) galaxy redshift survey: III. The Sample
G. Vettolani, E. Zucca, R. Merighi +17
The ESO Slice Project (ESP) is a galaxy redshift survey extending over about 23 square degrees, in a region near the South Galactic Pole. The survey is ~85% complete to the limitin…
Is the Universe a fractal? Results from the SSRS2
A. Cappi, C. Benoist, L. N. da Costa +1
We perform a fractal analysis of the Southern Sky Redshift Survey 2, following the methods prescribed by Pietronero and collaborators, to check their claim that the galaxy distribu…
The ESO Slice Project [ESP] galaxy redshift survey: V. Evidence for a D=3 sample dimensionality
R. Scaramella, L. Guzzo, G. Zamorani +17
The issue of the approximate isotropy and homogeneity of the observable universe is one of the major topics in modern Cosmology: the common use of the Friedmann-Robertson-Walker [F…
Properties of Very Luminous Galaxies
A. Cappi, L. N. da Costa, C. Benoist +2
Recent analysis of the SSRS2 data based on cell-counts and two-point correlation function has shown that very luminous galaxies are much more strongly clustered than fainter galaxi…
The ESO Slice Project (ESP) galaxy redshift survey: II. The luminosity function and mean galaxy density
E. Zucca, G. Zamorani, G. Vettolani +16
(Abridged) The ESO Slice Project (ESP) is a galaxy redshift survey we have completed as an ESO Key-Project over ~23 square degrees, in a region near the South Galactic Pole. The su…
The ESO Slice Project (ESP) galaxy redshift survey: I. Description and First Results
G. Vettolani, E. Zucca, G. Zamorani +16
The ESO Slice Project (ESP) is a galaxy redshift survey we have recently completed as an ESO Key-Project. The ESP covers 23.3 square degrees in a region close to the South Galactic…
Five contributions to the 3rd ESO-VLT Workshop ``Galaxy Scaling Relations''
A. Cappi, L. Ciotti, B. Lanzoni +3
In the first contribution the basic problems posed by the existence of the Fundamental Plane (FP), and its relations with the Virial Theorem are discussed. Various possibilities ar…
Biasing in the Galaxy Distribution
C. Benoist, S. Maurogordato, L. N. da Costa +2
We investigate the variation of galaxy clustering with luminosity using the recently completed SSRS2 sample. Clustering measurements based on the two-point correlation function and…
Preliminary Results from the ESO Slice Project (ESP)
G. Vettolani, E. Zucca, A. Cappi +18
We present the first results of a galaxy redshift survey, ESO Slice Project (ESP), we are accomplishing as an ESO Key-Project over about 30 square degrees in a region near the Sout…